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Table Of Contents
SIP-Based Features vs. MGCP-Based Features
Cisco BTS 10200 Softswitch-Based Features
Activation and Deactivation of Anonymous Call Rejection
Call Forwarding Activation and Deactivation
Call Forwarding to an E.164 Number or an Extension Number
Detailed Provisioning Procedure and Feature Description
Calling Name and Number Delivery
Caller ID Delivery Suppression
E.164 and Centrex Dialing Plan (Extension Dialing)
Incoming and Outgoing Simulated Facility Group
Operator Services (0-, 0+, 01+, and 00 Calls)
Remote Activation of Call Forwarding
Vertical Service Code Features
Planning VSCs In Networks with SIP Subscribers.
Supported VSC-Enabled Features for SIP Endpoints
Call Transfer (Blind and Attended) with REFER
Distinctive Ringing for Centrex DID Calls
Telephony Features
Revised: December 30 2007, OL-12397-10This chapter explains how the features delivered to BTS 10200 SIP subscribers compare to those delivered to BTS 10200 MGCP subscribers. The chapter covers the following topics:
•
SIP-Based Features vs. MGCP-Based Features
•
SIP-Based Features vs. MGCP-Based Features
Table 3-1 lists the MGCP features available (in the Feature column) and then describes how the feature differs when it is used as a SIP feature.
Table 3-1 MGCP Features and SIP Support
8XX Toll-Free
8xx
Same as MGCP.
911 Emergency-Service
911
Only E911 support (without the suspend procedure for 45 minutes). Basic 911 with suspend procedure is not supported.
Anonymous Call Rejection
ACR
Same as MGCP, when provided by Cisco BTS 10200. Also provided by the phone.
Anonymous Call Rejection Activation
ACR_ACT
BTS 10200 functionality is same for SIP subscribers as for MGCP.
ACR_ACT is also supported through the Services key on some SIP phones. Depending on the specific phone, the feature on the BTS 10200 might work jointly with the feature on the phone.
Anonymous Call Rejection Deactivation
ACR_DEACT
BTS 10200 functionality is same for SIP subscribers as for MGCP.
ACR_DEACT is also supported through the Services key on some SIP phones. Depending on the specific phone, the feature on the BTS 10200 might work jointly with the feature on the phone.
Automatic Callback
AC
SIP phone users cannot activate the service. MGCP users cannot activate the service toward SIP phone users.
Automatic Callback Activation
AC_ACT
SIP phone users cannot activate the service. MGCP users cannot activate the service toward SIP phone users.
Automatic Callback Deactivation
AC_DEACT
SIP phone users cannot activate the service. MGCP users cannot activate the service toward SIP phone users.
Automatic Recall
AR
SIP phone users cannot activate the service. MGCP users cannot activate the service toward SIP phone users.
Automatic Recall Activation
AR_ACT
SIP phone users cannot activate the service. MGCP users cannot activate the service toward SIP phone users.
Automatic Recall Deactivation
AR_DEACT
SIP phone users cannot activate the service. MGCP users cannot activate the service toward SIP phone users.
Busy Line Verification
BLV
Not supported.
Call Block
CBLK
Same as MGCP.
Call Forward Busy
CFB
Same as MGCP.
Call Forward Busy Variable Activation
CFBVA
Single-stage digit collection, and also through the phone's Services key.
Call Forward Busy Variable Deactivation
CFBVD
Same as MGCP, and also available through the phone's Services key.
Call Forward Busy Interrogation
CFBI
Single-stage digit collection.
Call Forward Combined
CFC
Same as MGCP.
Call Forward Combined Activation
CFC_ACT
Single-stage digit collection, and also through the phone's Services key.
Call Forward Combined Deactivation
CFC_DEACT
Same as MGCP, and also available through the phone's Services key.
Call Forward No Answer
CFNA
Same as MGCP.
Call Forward No Answer Variable Deactivation
CFNAVA
Single-stage digit collection, and also through the phone's Services key.
Call Forward No Answer Variable Deactivation
CFNAVD
Same as MGCP, and also available through the phone's Services key.
Call Forward No Answer Interrogation
CFNAI
Single-stage digit collection.
Call Forward Unconditional
CFU
Same as MGCP.
Call Forward Unconditional Activation
CFUA
Single-stage digit collection, and also through the phone's Services key.
Call Forward Unconditional Deactivation
CFUD
Same as MGCP, and also available through the phone's Services key.
Call Forward Unconditional Interrogation
CFUI
Single-stage digit collection.
Call Hold
CHD
Functionality provided by the phone. The BTS 10200 supports the interface.
Call Park
CPRK
Not supported.
Call Park and Retrieve
CPRK_RET
Not supported.
Call Transfer
CT
For SIP phones, this feature is provided as part of REFER support on the BTS 10200. See the REFER feature for more details.
Call Waiting
CW
Functionality provided by the phone. The BTS 10200 supports the interface.
Call Waiting Deluxe
CWD
Varies with phone functionality.
Call Waiting Deluxe Activation
CWDA
Varies with phone functionality.
Call Waiting Deluxe Deactivation
CWDD
Varies with phone functionality.
Call Waiting Deluxe Interrogation
CWDI
Varies with phone functionality.
Calling Identity Delivery and Suppression (Delivery)
CIDSD
Presentation status from the phone, and single-stage digit collection.
Calling Identity Delivery and Suppression (Suppression)
CIDSS
Presentation status from the phone, and single-stage digit collection.
Calling Identity Delivery on Call Waiting
CIDCW
Functionality provided by the phone. Cisco BTS 10200 supports the interface.
Calling Name Delivery
CNAM
Same as MGCP.
Calling Name Delivery Blocking
CNAB
Presentation status from the phone, and single-stage digit collection.
Calling Number Delivery
CND
The calling party number, if available, is delivered in the From header of the outgoing INVITE from the BTS 10200 to the terminating SIP phone. The number is delivered to the SIP phone even if the CND feature is not provisioned for the subscriber.
Calling Number Delivery Blocking
CNDB
Presentation status from the phone, and single-stage digit collection.
Cancel Call Waiting
CCW
Functionality provided by the phone. Cisco BTS 10200 supports the interface.
Class of Service
COS
CoS Screening supported, without Auth/Account code collection.
Custom-Dial-Plan
CDP
Same as MGCP.
Customer Originated Trace
COT
Same as MGCP.
Directed Call Pickup without Barge-in
DPN
Not supported.
Directed Call Pickup with Barge-in
DPU
Not supported.
Distinctive Alerting Call Waiting Indication
DACWI
This feature is provided to Centrex users only.
Provisioning for SIP does not differ from provisioning for MGCP. However, the delivery method for DACWI is different.
The Centrex administrator provisions a list of DNs that are to receive DACWI tones.
In MGCP, the phone plays the tone specified by the BTS 10200 in the protocol message. In SIP, the tone provisioned for the DN is specified by the BTS 10200 in the Alert-Info header of the INVITE as a file URL. A SIP phone, if capable, interprets this header and plays the specified distinctive ringing or call-waiting tone.
Distinctive Ringing Call Waiting
DRCW
Provisioning for SIP does not differ from provisioning for MGCP. However, the delivery method for DRCW is different.
The subscriber provisions a list of DNs to receive DRCW tones.
In MGCP, the phone plays the tone specified by the Cisco BTS 10200 in the protocol message. In SIP, the tone provisioned for the DN is specified by the Cisco BTS 10200 in the Alert-Info header of the INVITE as a file URL. A SIP phone, if capable, can interpret this header and play the specified distinctive ringing or call-waiting tone.
Distinctive Ringing Call Waiting
DRCW_ACT
Same as MGCP.
Do Not Disturb
DND
Same as MGCP, except that the reminder ring cannot be used with SIP devices.
Do Not Disturb Activation
DND_ACT
Same as MGCP, and also available through the phone's Services key.
Do Not Disturb Deactivation
DND_DEACT
Same as MGCP, and also available through the phone's Services key.
Group Speed Call—1 digit
GSC1D
Not supported.
Group Speed Call—2 digit
GSC2D
Not supported.
Hotline
HOTLINE
Not supported.
Hotline Variable
HOTV
Not supported.
Hotline Variable Activation
HOTVA
Not supported.
Hotline Variable Deactivation
HOTVD
Not supported.
Hotline Variable Interrogation
HOTVI
Not supported.
Incoming Simulated Facility Group
ISFG
Same as MGCP.
Local Number Portability
LNP
Same as MGCP.
Multiline Hunt Group
MLHG
MLHG is not supported for SIP subscribers.
Multiple Directory Number
MDN
Provisioning for SIP does not differ from provisioning for MGCP. However, the delivery methods for distinctive -ringing (a distinctive ring tone for each line of the MDN subscriber), and the distinctive tone on call waiting are different.
You provision distinctive ringing and call waiting tones for each DN of the MDN subscriber in the same manner for MGCP and SIP. In MGCP, the phone plays the tone specified by the Cisco BTS 10200 in the protocol message. In SIP, the tone provisioned for the DN is specified by the Cisco BTS 10200 in the Alert-Info header of the INVITE as a file URL. A SIP phone, if capable, can interpret this header and play the specified distinctive ringing or call waiting tone.
Outgoing Call Barring
OCB
Same as MGCP.
Outgoing Call Barring Activation
OCBA
Single stage digit collection, and also through the phone's Services key.
Outgoing Call Barring Deactivation
OCBD
Single stage digit collection, and also through the phone's Services key.
Outgoing Call Barring Interrogation
OCBI
Single stage digit collection, and also through the phone's Services key.
Outgoing Simulated Facility Group
OSFG
Same as MGCP.
Remote Activation of Call Forwarding
RACF
Same as MGCP.
Remote Activation of Call Forwarding PIN
RACF_PIN
Same as MGCP.
Refer
REFER
This is not for MGCP users. Cisco BTS 10200 supports the SIP REFER interface to enable services such as Call-Transfer (attended, unattended) provided by the phone.
Selective Call Acceptance
SCA
Same as MGCP.
Selective Call Acceptance Activation
SCA_ACT
Same as MGCP.
Selective Call Forwarding
SCF
Same as MGCP.
Selective Call Forwarding Activation
SCF_ACT
Same as MGCP.
Selective Call Rejection
SCR
Same as MGCP.
Selective Call Rejection Activation
SCR_ACT
Same as MGCP.
Speed Call—1 digit
SC1D
Not supported.
Speed Call Activation—1 digit
SC1D_ACT
Not supported.
Speed Call—2 digit
SC2D
Not supported.
Speed Call Activation—2 digit
SC2D_ACT
Not supported.
Three-Way Calling
TWC
Functionality provided by the phone. The BTS 10200 supports the interface.
Three-Way Call Deluxe
TWCD
Varies with phone functionality.
Usage-Sensitive Three-Way Calling
USTWC
Functionality provided by the phone. The BTS 10200 supports the interface.
Warmline
WARMLINE
Not supported.
Cisco BTS 10200 Softswitch-Based Features
Softswitch-based features are directly provided by the BTS 10200. SIP phones can provide some features on their own; for information on the features provided by the different SIP phones, see the SIP phone administration guides.
This section describes Softswitch-based features entirely provided by the Cisco BTS 10200 Softswitch.
Note
Summary
Table 3-2 lists the most commonly used Softswitch-based features; however, it is not an exhaustive list.
s
Activation and Deactivation of Anonymous Call Rejection
The provisioning steps and behavior of this feature are the same as provided for MGCP subscribers. Additional information on this feature is provided at the following links.
"Anonymous Call Rejection" section in the Cisco BTS 10200 Softswitch Provisioning Guide
"Anonymous Call Rejection" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
Billing
The BTS 10200 provides call data for billing on SIP calls. Specific fields are supported in the call detail data records for calls that originate or terminate on a SIP trunk or subscriber. For detailed information on billing management and data, see the Cisco BTS 10200 Softswitch Billing Interface Guide.
CALEA
For information on CALEA, see Chapter 2, "Lawful Intercept and CALEA," in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document.
Call Forwarding
The differences between the feature for SIP and the feature for MGCP are as follows:
•
•
Call Forwarding Activation and Deactivation
Activation and deactivation of call forwarding features use the vertical service code (VSC), also known as a star code. Alternatively, you can activate or deactivate the feature by using the Services key on certain phones.
With SIP support, the call forwarded to number can be a Centrex extension number (only applicable for business users) or an E.164 number.
Note
SIP subscribers do not hear a final dial tone upon completing activation or deactivation. Instead, an announcement plays for the subscriber, indicating that the status of the forwarding feature is being activated or deactivated. This is irrespective of the Final Stage Dial Tone (FDT) flag (Y/N) provisioned for these features.
Call Forwarding to an E.164 Number or an Extension Number
Activation and deactivation are accomplished using single-stage dialing.
Detailed Provisioning Procedure and Feature Description
Additional information on this feature is provided at the following links.
Call forwarding sections in the Cisco BTS 10200 Softswitch Provisioning Guide
"Call Forwarding Features" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
Calling Name and Number Delivery
Calling number delivery (CND) provides the SIP subscriber endpoint with the calling number of an incoming call. Calling name delivery (CNAM) provides the endpoint with the name of the calling party.
CND
The calling party number, if available, is delivered in the From header of the outgoing INVITE from the BTS 10200 to the terminating SIP phone. The number is delivered to the SIP phone even if the CND feature is not provisioned for the subscriber. The delivered information is as follows:
•
•
•
CNAM
The calling party name is delivered in the outgoing INVITE from the BTS 10200 to the terminating SIP phone only if the CNAM feature is provisioned for the SIP subscriber. The delivered information is as follows:
•
•
•
Additional information on this feature is provided at the following links.
CND, CNAM, CNDB, and CNAB sections in the Cisco BTS 10200 Softswitch Provisioning Guide
"Calling Identity Features" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
Caller ID Delivery Suppression
The treatment for caller's identity is based on the presence of "anonymous" in the Display-Name field of the From header in the INVITE message. If the caller's identity is restricted in the incoming SIP INVITE message, the presentation is suppressed.
Caller Identity presentation (allowed/restricted) information for SIP subscribers is not maintained in the Cisco BTS 10200 Softswitch database. This information is maintained on the individual phones and can be provisioned through the phone softkeys. Permanent restriction on the phone can be overridden if the caller dials a feature (*) code on a per-call basis. This is a single-stage dialing for SIP subscribers.
Additional information on this feature is provided at the following links.
"CND, CNAM, CNDB, and CNAB" sections in the Cisco BTS 10200 Softswitch Provisioning Guide
"Calling Identity Delivery and Suppression (CIDSD and CIDSS)" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
Called Party Termination
Provisioning or using this feature for SIP is the same as provisioning or using it for MGCP. This is true when the called-party termination is not available, not reachable, or not registered.
Customer Access Treatment
Provisioning this feature for SIP is the same as provisioning it for MGCP. The provisioning commands for this feature are shown in Chapter 8, "Centrex Provisioning," in the Cisco BTS 10200 Softswitch Provisioning Guide.
Customer-Originated Trace
Provisioning this feature for SIP is the same as provisioning it for MGCP.
Additional information on this feature is provided at the following links.
"Customer Originated Trace" section in the Cisco BTS 10200 Softswitch Provisioning Guide
"Customer Originated Trace (COT)" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
Direct Inward Dialing
Provisioning this feature for SIP is the same as provisioning it for MGCP.
Assign the DID number to the subscriber as DN1 in the Subscriber table.
For information about the operation of this feature, see the "Direct Inward Dialing" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions guide.
Direct Outward Dialing
With the Direct Outward Dialing (DOD) service, a station user can place external calls to the exchange network without attendant assistance by:
1.
2.
3.
Access to the DOD feature is subject to station restrictions.
Note
For information about the operation of this feature, see the DOD for PBX section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions guide.
Do Not Disturb
The Do Not Disturb (DND) feature enables a user to block incoming calls to the station on which the feature is activated. If no call forwarding features are activated, calls to the station are routed to busy treatment. This feature should be provisioned and activated on the BTS 10200 because of feature interaction with advanced features like executive override.
This is a single-stage dialing activation feature. The Alert-Info header plays the result of activation/deactivation—Success is a confirmation tone and failure is a failure message.
The reminder ring option (which is available with the DND feature on MGCP-based lines) cannot be used with SIP devices.
For features (such as DND) that can be fully provisioned on the BTS 10200 or on the phone, you can provision either one of the devices to enable the feature.
Caution
Additional information on this feature is provided at the following links.
"Do Not Disturb (DND)" section in the Cisco BTS 10200 Softswitch Provisioning Guide
"Do Not Disturb (DND)" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
Emergency Call
Emergency Call (911) is supported for SIP endpoints with one caveat: If the calling party (SIP subscriber) disconnects the call, the called party control is not available. Otherwise, the call will be released. Expanded emergency service (E911) does not require this, but basic emergency service (911) does. Both 911 and E911 are supported for MGCP endpoints.
Note
Note
Additional information on this feature is provided at the following links.
"911 Emergency" section in the Cisco BTS 10200 Softswitch Provisioning Guide
"Emergency Services (911)" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
E.164 and Centrex Dialing Plan (Extension Dialing)
The system supports E.164 and Centrex Dialing Plan (extension dialing) addressing from SIP subscribers served by the local BTS 10200.
The SIP phone's dial plan must be configured so that it considers the number of digits in the Centrex group. Centrex dialing can be provisioned within a range of 1 through 7 digits. Each Centrex group should have its own separate dial plan.
Note
Example 3-1 A SIP URL with E.164 Addressing
sip:4695551234@rcdn.cisco.com;user=phoneA sip:50603@rcdn.cisco.com;user=phoneAdditional information on this feature is provided at the following links.
"Provisioning a Centrex Group" section in the Cisco BTS 10200 Softswitch Provisioning Guide
"Numbering Plans and Dialing Procedures" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
"Features for Centrex Subscribers Only" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
Incoming and Outgoing Simulated Facility Group
Provisioning this feature for SIP is the same as provisioning it for MGCP.
For information on provisioning simulated facility group, see the "Incoming Simulated Facility Group" and "Outgoing Simulated Facility Group" sections in the Cisco BTS 10200 Softswitch Provisioning Guide.
Multiple Directory Numbers
Provisioning this feature for SIP is the same as provisioning it for MGCP. However, the delivery methods for distinctive ringing (a distinctive ring tone for each line of the MDN subscriber), and the distinctive tone on call waiting are different.
You provision distinctive ringing and call waiting tones for each DN of the MDN subscriber in the same manner for MGCP and SIP. In MGCP, the phone plays the tone specified by the BTS 10200 in the protocol message. In SIP, the tone provisioned for the DN is specified by the BTS 10200 in the Alert-Info header of the INVITE as a file URL. A SIP phone, if capable, interprets this header and plays the specified distinctive ringing or call-waiting tone.
Additional information on this feature is provided at the following links.
"Multiple Directory Number (MDN)" section in the Cisco BTS 10200 Softswitch Provisioning Guide
"Multiple Directory Number (MDN)" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
Operator Services (0-, 0+, 01+, and 00 Calls)
There is no Cisco BTS 10200 Softswitch subscriber-specific provisioning involved for Operator Services. There are provisioning procedures for busy line verification (BLV). Provisioning this feature for SIP is the same as provisioning it for MGCP.
Additional information on this feature is provided at the following links.
"Busy Line Verification (BLV) " section in the Cisco BTS 10200 Softswitch Provisioning Guide
"Operator Services" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
Outgoing Call Barring
Provisioning this feature for SIP is the same as provisioning it for MGCP.
Additional information on this feature is provided at the following links.
"Outgoing Call Barring (OCB)" section in the Cisco BTS 10200 Softswitch Provisioning Guide
"Outgoing Call Barring (OCB)" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
Remote Activation of Call Forwarding
Provisioning this feature for SIP is the same as provisioning it for MGCP.
Additional information on this feature is provided at the following links.
"Remote Activation of Call Forwarding (RACF) and PIN Change" section in the Cisco BTS 10200 Softswitch Provisioning Guide
"Remote Activation of Call Forwarding (RACF)" section in the Cisco BTS 10200 Softswitch Network and Subscriber Feature Descriptions document
User-Level Privacy
User-level privacy is provisioned in the Subscriber table.
Setting the privacy parameter to user directs the system to apply the user-provided privacy information. This setting (privacy=user) applies only to SIP endpoints that are capable of including privacy information.
Vertical Service Code Features
This section explains how to plan vertical service codes (VSCs) in a network with SIP subscribers, and lists the VSC-enabled features.
Planning VSCs In Networks with SIP Subscribers.
Some features require SIP subscriber to enter a series of numbers and characters on the SIP client or handset. Typically, the subscriber dials VSC digits followed by additional dialing keys representing the parameters for the feature call. For MGCP subscribers, the BTS 10200 sends a response tone or announcement between the VSC code and the additional digits. However, for SIP endpoints, all the digits are dialed at a stretch without waiting for an intervening response tone from the BTS 10200. The following paragraph explains how certain combinations of VSC can cause mismatches between the feature the subscriber is attempting to manage versus the response of the BTS 10200, and how to plan VSCs to avoid these mismatches.
You should not deploy certain combinations of VSCs on networks with SIP endpoints. If you deploy a VSC longer than 2 digits, make sure that the longer VSC does not begin with the same sequence of characters as one of the shorter VSCs. In some cases, the system might match the shorter string even if the subscriber dialed the longer string. Consider the following example, for which the subscriber is expected to dial a VSC followed by a DN.
A SIP subscriber is provisioned with *93 for Feature1 and *938 for Feature2, and dials *938+2135551801 to invoke Feature2. The BTS 10200 receives *9382135551801 in the INVITE message. By default, it takes the first six characters, in this case *93821, and uses this string to look up the feature in the VSC table. There is no match for *93821, therefore the BTS 10200 proceeds as follows. First, it uses *9 to look for a match in the VSC table and it cannot be found. Then it uses *93, finds a match, and delivers Feature1. This is incorrect. The user's intention was to invoke Feature2 and not Feature1. The solution is for the service provider to change one of the two VSCs (either *93 or *938) in the VSC table.
Supported VSC-Enabled Features for SIP Endpoints
The following BTS 10200 Vertical Service Code (VSC) features are supported on SIP endpoints:
•
•
•
•
•
Reminder ringback cannot be enabled for SIP subscribers. If you are turning on the Call Forward Unconditional (CFU) feature for a SIP subscriber, make sure that reminder ring capability is turned off. This should be done at a subscriber level.
Here is the command format at the feature level:
add feature fname=CFU; tdp1=TERMINATION_ATTEMPT_AUTHORIZED; tid1=TERMINATION_ATTEMPT_AUTHORIZED; feature_server_id=FSPTC235; ttype1=R; fname1=CFUA; fname2=CFUD; type1=MCF; value1=Y; type2=RR; value2=N; description=CFU MCF multiple call forwarding allowed, RR ring reminder not allowed;And at the subscriber feature level:
add subscriber-feature-data sub_id=sip_sub2; FNAME=CFU; type2=RR; VALUE2=N;•
•
•
Voice-Mail Support
Voice-mail support is configured through SIP trunks in the Cisco BTS 10200 Softswitch. The system also notifies SIP subscribers if a voice mail is waiting. For voice-mail provisioning and operation, see Chapter 5, "Voice-Mail Features."
Jointly Provided Features
Some features are provided jointly by the phone and by the BTS 10200. Here are some examples:
•
•
The sections that follow provide information about these features.
Text-GUI Features
The BTS 10200 supports SIP client/handset text-based user interface (UI) provisioning for a select set of features. This is in addition to numerous supplementary features supported natively by the SIP client/handset itself. Some of the features require updating the status on the network database. Cisco BTS 10200 provides complementary support to SIP clients/handsets to update end user feature access status on the switch network database.
Provisioning in this context refers to feature activation or deactivation, and setting any applicable directory numbers (DNs) associated with the feature. If a SIP handset is used, the phone's LCD panel is used as a menu display area to guide the user toward feature provisioning. If a SIP software client is used, the UI display region in the client software is used to guide the user through feature provisioning.
There might be multiple lines on the SIP phone, but currently services configured by softkeys on the phone are available to only one of those lines. The subscriber for that line is provisioned in the BTS 10200 with the MAC address of the phone (see the MAC Address to Subscriber table in the Cisco BTS 10200 Softswitch CLI Database).
Supported Handsets
Cisco BTS 10200 supports any SIP client/handset that supports CallManager XML 3.0.
Supported Features
The following features have SIP client/handset-based provisioning support:
•
•
•
•
•
Accessing Features
The following sections describe how to access the features.
SIP Handset
The SIP handset provides a button labeled "Services" or an icon indicating "Services." Initial access to feature provisioning is through the Services button. After initial access, the UI display area provides a menu-driven interface and a feature-specific menu.
To navigate the menu, the end user presses the Up and Down arrow buttons or menu numbers. At any level of navigation, the end user presses the Exit softkey to go back one step in the menu hierarchy. The user selects menu items using the Select softkey button and uses the numeric dial to enter DN information.
Menu Hierarchy
Feature Options
Call Forwarding
Call-Fwd Busy
Activate/Deactivate Feature
Set/Change Forwarding Number
Number:
Call-Fwd Unconditional
Activate/Deactivate Feature
Set/Change Forwarding Number
Number:
Call-Fwd No Answer
Activate/Deactivate Feature
Set/Change Forwarding Number
Number:
Anonymous Call Rejection
Activate/Deactivate Feature
Do Not Disturb
Activate/Deactivate Feature
SIP Software Clients
The user interface for applicable software clients is similar to a SIP handset user interface.
Call Transfer (Blind and Attended) with REFER
The SIP Call Transfer (CT) feature is supported for SIP subscribers. For SIP phones, this feature is provided as part of REFER support on the BTS 10200.
The CT feature requires phone support for sending the SIP REFER message. See the phone documentation for details on the user interface and procedures for effecting a call transfer. Both blind and attended transfers are supported. Attended transfer to a transfer-target is supported only after the target answers; that is, consultative attended transfer is supported. Attended transfer is not possible while the transfer-target is being alerted (ringing state).
The difference between provisioning the feature for SIP and provisioning it for MGCP is as follows:
•
•
Distinctive Ringing
Distinctive ringing uses a special ringing pattern to alert the called user of incoming calls from preselected telephone numbers. This is a CLASS feature and is offered to both business and residential users. There is no difference between provisioning the feature for SIP and provisioning it for MGCP.
You can edit the list of selected numbers though the Screening List Editing (SLE) feature, which requires the configuring of an IVR with the BTS 10200. Distinctive ringing can be assigned to a station and to the group, and it can be applied to users based on the call type/calling number. When assigned to a group, distinctive ringing is applied to users in the group based on the call type. When assigned to the line, distinctive ringing is applied to the user based on the calling number. The BTS 10200 sends an Alert-Info header in the outgoing INVITE message, instructing the SIP phone to play a specific ring tone.
Distinctive ringing depends on the SIP phone's capability to support processing of the information received in an Alert-Info header.
Distinctive Ringing for Centrex DID Calls
The BTS 10200 sends an Alert-Info header in the outgoing INVITE message, instructing the SIP phone to play a specific ring tone. Distinctive ringing depends on the SIP phone's capability to process the information received in the Alert-Info header. There are no differences between provisioning the feature for SIP and provisioning it for MGCP.
Phone-Based Features
The phone provides some features standalone, without BTS 10200 support. If the SIP phone requires provisioning to provide this function, refer to the SIP phone documentation for instructions.
Table 3-3 lists the phone-based features.
.
Table 3-3 SIP Phone-Based Features
Call Hold and Resume
CHD
Call Waiting
CW
Call Waiting Caller ID
CWCID
Cancel Call Waiting
CCW
CODEC Up-Speeding
CODEC1
Do Not Disturb
DND
Three-Way Calling
TWC
1 For feature calls between MGCP and SIP subscribers, the BTS 10200 supports the CODEC up-speeding capability. The SIP phone would also need to support this capability for the up-speeding capability to be fully supported in the call.
For features (such as DND) that are available independently on the phones and the BTS 10200, you can provision either device to enable the feature.
Caution
