Table Of Contents
Overview of Cisco Unity Express Voice Mail and Auto Attendant
Contents
Prerequisites for Implementing Cisco Unity Express on Cisco CME
Recording an Auto Attendant Greeting or Prompt File
Configuring Auto Attendant Scripts
Restrictions for Implementing Cisco Unity Express
Information about Cisco Unity Express
Differences Between the AIM-CUE and NM-CUE
Software Licenses and Factory-Set Limits
Administration Interfaces
Differences Between Cisco Unity Express and Cisco Unity
Interactions Between Cisco Unity Express and Cisco CME
Differences Between Cisco Unity Express and Cisco CME
Networking Cisco Unity Express with Other Voice Mail Systems
Unavailable GUI Online Help Screens
Cisco CallManager Express Login for the Init Wizard
Cisco CallManager Express System Configuration
Lost Contact Error Screen
Additional References
Documents Related to Cisco Unity Express
Related Cisco IOS Documents
MIBs
RFCs
Technical Assistance
Overview of Cisco Unity Express Voice Mail and Auto Attendant
The Cisco Unity Express voice mail and auto attendant applications work with Cisco CallManager Express (CME) to provide small- and medium-sized companies with the capability to:
•
Create and maintain voice mailboxes for onsite or remote telephone users. Release 2.0 supports up to 100 mailboxes; earlier releases support up to 50 mailboxes. The maximum number of mailboxes depends on the hardware module and license agreement purchased for Cisco Unity Express.
•Record and upload messages for callers to hear when they dial the company's telephone number, and prompts to guide the callers to specific extensions or employees.
Contents
•Prerequisites for Implementing Cisco Unity Express on Cisco CME
•Restrictions for Implementing Cisco Unity Express
•Information about Cisco Unity Express
–Differences Between the AIM-CUE and NM-CUE
–Software Licenses and Factory-Set Limits
–Administration Interfaces
–Differences Between Cisco Unity Express and Cisco Unity
–Interactions Between Cisco Unity Express and Cisco CME
–Differences Between Cisco Unity Express and Cisco CME
•Additional References
Prerequisites for Implementing Cisco Unity Express on Cisco CME
Before starting Cisco Unity Express configuration, the Cisco CME system must be installed. If you did not or are not performing the Cisco CME installation, contact the installer or other support personnel to ensure that the following procedures are completed:
1. Install all Cisco CME and Cisco Unity Express hardware and verify functionality.
•Attach the telephones so that they register with the Cisco CME router.
•Verify that the Cisco CallManager server is configured with Cisco IOS Release 12.3(4)T or a later release to support a network module (NM) configuration or with Cisco IOS Release 12.3(7)T or a later release to support an advanced integration module (AIM) configuration.
•Install the Cisco Unity Express NM or AIM in the same router where Cisco CME is installed.
•For the NM, verify that the Enable LED is lit.
Caution If you are installing an AIM-CUE in your Cisco 3745 router, you must install it in the AIM slot labeled AIM1. Installing this AIM in the AIM slot labeled AIM0 of Cisco 3745 routers can damage the AIM.
Note We highly recommend attaching an uninterruptible power supply (UPS) to the router housing the Cisco Unity Express module. Any reliable UPS unit provides continuous power to maintain the operation of the router and the Cisco Unity Express module. Consider the unit's capacity and run time because power consumption differs among Cisco platforms. Ideally, a UPS should include a signaling mechanism that directs the router to shut down Cisco Unity Express properly and then powers off the router.
Cisco IOS Release 12.3(4)T supports automatic switchover to the UPS device if the following configuration is added to the router:
line aux 0
privilege level 15
modem Dialin
autocommand service-module service-engine slot/0 shutdown no-confirm
where slot is the Cisco Unity Express module's slot number.
2. Install and verify Cisco CME software functionality.
a. You should be able to access the Cisco CME configuration web page.
b. Verify that the Cisco CME router flash memory has the following files, which control the functionality of the Cisco Unity Express GUI:
- CiscoLogo.gif
- Delete.gif
- Plus.gif
- Tab.gif
- admin_user.html
- admin_user.js
- dom.js
- downarrow.gif
- ephone_admin.html
- logohome.gif
- normal_user.html
- normal_user.js
- sxiconad.gif
- telephony_service.html
- uparrow.gif
- xml-test.html
- xml.template
c. Configure the following path in Cisco CME configuration mode:
Router(config)# ip http path flash:
Verify the path with the show run command.
d. To configure the ip unnumbered command on the service-engine interface, use the Cisco IOS software commands on the router to create a static route to the Cisco Unity Express module, for example:
ip route 10.3.6.128 255.255.255.255 Service-Engine1/0
In this example, 10.3.6.128 is the IP address of the Cisco Unity Express module and Service-Engine1/0 is the router slot hosting the Cisco Unity Express module.
e. Verify that a SIP dial peer is configured to point to the Cisco Unity Express module, that it specifies G.711 U-law and SIP Notify for DTMF Relay, and VAD is turned off, for example:
dial-peer voice 6000 voip <------ SIP dial-peer pointing to Cisco Unity Express
session target ipv4:10.3.2.100 <---- Cisco Unity Express IP address
Configure the appropriate number of SIP dial peers to support your dial plan.
f. Cisco Unity Express, (CUE) uses an FTP server to download CUE license and software files. The FTP server that communicates with CUE must support passive FTP requests. To configure this functionality on the FTP server, refer to the FTP server documentation.
g. Verify that a Cisco CME web administrator is configured with a user ID and password, for example:
web admin system name admin password user1
or
web admin system name admin secret 5 encrypted-password
Note If you plan to use the Cisco Unity Express graphical user interface (GUI) for configuration purposes, configure an administrator user ID with a password in the Cisco CME interface. You must log in to the GUI as this user. If no administrator user is created in Cisco CME, the administrator cannot proceed with the initialization wizard in the Cisco Unity Express GUI. In Release 1.1, an administrator is created during the installation procedure.
h. Configure the telephones and users. You can create additional users and telephones later using the Cisco Unity Express CLI commands or GUI options. The CLI commands and GUI options create the telephone users in the Cisco CME database; use a synchronization CLI command or GUI option to copy the users and telephones into the Cisco Unity Express database.
Use the following sample ephone-dn and ephone configurations to configure the telephones and users manually:
ephone-dn 1 <---- ephone dn configuration for a user
call-forward noan 6900 timeout 10
ephone-dn 20 <---- ephone dn configuration for a group
call-forward noan 6900 timeout 10
i. Configure the message waiting indicator (MWI) on and off extensions. Add the wildcard characters (.) to the DNs to represent the length of a telephone extension number. Cisco Unity Express requires these wildcards when importing the MWI DNs from Cisco CME during the initialization wizard. If the wildcard characters are not configured in Cisco CME, the DNs will not appear as available choices in the MWI extension field. For example:
ephone-dn 30 <---- ephone-dn configurations for MWI on
number 8000.... <---- valid MWI DN 4-digit extension
ephone-dn 31 <---- ephone-dn configurations for MWI off
number 8001.... <---- valid MWI DN 4-digit extension
ephone 1 <--- ephone configured for the ephone-dn configured above
username "admin1" password null
mac-address 0009.B7F7.556A
button 1:1 2:20 3:21 4:22 5:23
3. (Optional) If no users were created in the Cisco CallManager interface, create a list of all users, groups, and their extensions. Having this list eases the task of adding many users and extensions in CCM.
4. (Optional) Create an alternate welcome message for the auto attendant application. A default welcome message comes with auto attendant. You can create a different message in a .wav file and install it as part of the auto attendant configuration. See "Recording an Auto Attendant Greeting or Prompt File" for more information.
5. (Optional) Customize the auto attendant prompt flow to meet your business requirements. See "Configuring Auto Attendant Scripts" for more information.
6. (Required) Record the IP address of the Cisco Unity Express module. Accessing the GUI to configure the system requires this IP address.
Recording an Auto Attendant Greeting or Prompt File
Two methods are available to create auto attendant greeting and prompt files:
•Create a .wav file with the following format: G.711 U-law, 8 kHz, 8 bit, Mono. The file cannot be larger than 500 KB. After recording the greeting, use the GUI or Cisco Unity Express CLI ccn copy command to copy the file in to the Cisco Unity Express system. See the next section, "Recording an Auto Attendant Greeting or Prompt File," for the upload procedure.
•Use the GMS on the TUI to record the greeting or prompt. Dial the GMS telephone number and select the option to record a greeting. When finished recording, save the file. GMS automatically saves the file in Cisco Unity Express.
The GMS prompt filename has the format UserPrompt_DateTime.wav, for example: UserPrompt_11152003144055.wav. You may want to use CLI commands or GUI options to download the file to a PC, rename the file with a meaningful name, then upload the file back to Cisco Unity Express.
Configuring Auto Attendant Scripts
Cisco Unity Express provides a set of auto attendant prompts and a process, called a script, for handling callers' responses to the prompts. You can modify this script so that specific caller responses are handled in a different way. For example, callers can be directed to leave a voice message in a specific mailbox if they call after business hours.
Use the Microsoft Windows software-based script editor software that comes with Cisco Unity Express to modify the script or create a new script. Refer to the Cisco Unity Express Script Editor Guide for guidelines and procedures.
The file cannot be larger than 1 MB.
After creating the script file, save the file on your PC. Use the CLI interface or the GUI option Voice Mail > Scripts to upload the script file to the auto attendant application.
Restrictions for Implementing Cisco Unity Express
The following restrictions apply to Cisco Unity Express Release 2.0.
Networking
•Cisco Unity Express supports voice mail networking only with other Cisco Unity Express and Cisco Unity voice mail systems. Networking support for other voice mail systems is not available in Release 2.0.
System Functionality
•For the NM, only one person with administrator privileges and four people with user privileges may log in to the GUI simultaneously. For the AIM, only one administrator and two users may log in to the GUI simultaneously.
•Date and time are determined by the NTP server and cannot be set in the Cisco Unity Express software. Cisco Unity Express can be configured as a network transfer protocol (NTP) client. See the NTP configuration section in Cisco Unity Express CLI Administrator Guide for Cisco CallManager Express, Release 2.0 and your NTP server CLI for more information.
•Cisco Unity Express supports one language on the system at a time. The language selections are English, French, German, and European Spanish. This language controls the telephone user interface (TUI) system prompts and greetings. The administrative interfaces (GUI and CLI) are available only in U.S. English. Cisco CME controls the telephone displays, which may be available in multiple languages, and are independent of the Cisco Unity Express supported languages.
Voice Mail Application
•Cisco Unity Express does not support broadcast messaging.
•Cisco Unity Express does not support distribution lists.
•Cisco Unity Express supports two greetings per user, one standard greeting and one alternate greeting. The greetings' time is included in the user's allotted mailbox storage space.
Hardware Limitations
•Only one Cisco Unity Express module per router chassis is permitted, regardless of the number of module slots in the chassis.
•The AIM must only be installed in slot 1 of the Cisco 3745 router chassis, installing it in slot 0 may damage the AIM module.
•The NM's front panel Fast Ethernet 0 port is not used by the Cisco Unity Express applications and is disabled. The Fast Ethernet 1 port connects the Cisco Unity Express network module to the router and is the only active Fast Ethernet port on the network module.
•The hard disk on the NM cannot be replaced. If the network module's hard disk crashes, the network module must be replaced.
•Online insertion and removal (OIR) of the Cisco Unity Express NM is available only on the Cisco 3745 router. The replacement module must be the same type as the original module. OIR is not available for the AIM.
Caution If the network module or AIM flash memory card must be replaced, manually shut down the Cisco Unity Express application before removing the module from the chassis to prevent file corruption and data loss.
Backup and Restore
Cisco Unity Express does not support the following backup and restore capabilities:
•Scheduled backup and restore operations. The backup and restore procedures begin when you enter the appropriate command.
•Centralized message storage arrangement. The Cisco Unity Express backup files cannot be used or integrated with other message stores.
•Selective backup and restore. Only full backup and restore functions are available. Individual voice mail messages or other specific data cannot be stored or retrieved.
Other Restrictions
•Cisco Unity Express is an embedded system and provides no access to the Linux system. Users cannot add other Linux-based applications to the Cisco Unity Express module.
•Cisco Unity Express does not support managing and configuring using Simple Network Management Protocol (SNMP) except for hardware inventory.
•Cisco Unity Express does not support Cisco Networking Services (CNS) or Subnetwork Access Protocol (SNAP) autoprovisioning.
•Cisco Unity Express does not support CiscoWorks configmaker.
Information about Cisco Unity Express
The following sections provide general information about Cisco Unity Express.
Differences Between the AIM-CUE and NM-CUE
Cisco Unity Express is supported on both the AIM-CUE and the NM.-CUE Cisco Unity Express features work the same way on both modules with the following exceptions:
•The AIM-CUE is a 4-port module with 1GB of flash memory that stores a maximum of 50 voice mailboxes and 8 hours of voice messages. The NM-CUE is an 8-port module that stores a maximum of 100 voice mailboxes and 100 hours of voice messages.
•A trace or log command issued on the NM-CUE automatically saves the data to the disk. On the AIM-CUE, the trace and log data are not saved to flash memory. A Cisco Unity Express CLI command is available to save the data to the AIM-CUE flash memory.
•Cisco Unity Express tracks the use and wear activity of the AIM-CUE flash memory. This tracking is not necessary for the NM-CUE. The CLI command show interface ide 0 and the GUI option Reports > System displays the flash memory wear data.
Software Licenses and Factory-Set Limits
Factory-set system limits are determined by the ordered license. Limits for the NM-CUE are shown in Table 2 and Table 4. Limits for the AIM-CUE are shown in Table 4 and Table 5.
Table 2 System Capacities for Mailboxes, Storage Hours, Ports, Scripts, and Prompts on the NM-CUE
Cisco Unity Express License/Software SKU
|
Total Mailbox Storage (Hours)
|
Default Mailbox Size (Minutes)
|
Number of Ports
|
Number of Automated Attendant Scripts
|
Number of Automated Attendant Prompts
|
SCUE-LIC-12CCM
|
100
|
353
|
8
|
8
|
50
|
SCUE-LIC-25CCM
|
100
|
171
|
8
|
8
|
50
|
SCUE-LIC-50CCM
|
100
|
92
|
8
|
8
|
50
|
SCUE-LIC-100CCM
|
100
|
50
|
8
|
8
|
50
|
Table 3 Maximum Number of Mailboxes, Groups, Owners, and Members on the NM-CUE
Cisco Unity Express License/Software SKU
|
Number of Personal Mailboxes
|
Number of General Delivery Mailboxes
|
|
|
|
SCUE-LIC-12CCM
|
12
|
5
|
20
|
400
|
880
|
SCUE-LIC-25CCM
|
25
|
10
|
20
|
400
|
1000
|
SCUE-LIC-50CCM
|
50
|
15
|
30
|
400
|
1000
|
SCUE-LIC-100CCM
|
100
|
20
|
40
|
400
|
1000
|
Table 4 System Capacities for Mailboxes, Storage Hours, Ports, Scripts, and Prompts on the AIM-CUE
Cisco Unity Express License/Software SKU
|
Total Mailbox Storage (Hours)
|
Default Mailbox Size (Minutes)
|
Number of Ports
|
Number of Automated Attendant Scripts
|
Number of Automated Attendant Prompts
|
SCUE-LIC-12CCM
|
14
|
28
|
4
|
4
|
25
|
SCUE-LIC-25CCM
|
14
|
13
|
4
|
4
|
25
|
SCUE-LIC-50CCM
|
14
|
7
|
4
|
4
|
25
|
Table 5 Maximum Number of Mailboxes, Groups, Owners, and Members on the AIM-CUE
Cisco Unity Express License/Software SKU
|
Number of Personal Mailboxes
|
Number of General Delivery Mailboxes
|
|
|
|
SCUE-LIC-12CCM
|
12
|
5
|
20
|
100
|
200
|
SCUE-LIC-25CCM
|
25
|
10
|
20
|
100
|
200
|
SCUE-LIC-50CCM
|
50
|
15
|
20
|
100
|
200
|
Administration Interfaces
Cisco Unity Express offers two administration interfaces:
•Graphical user interface (GUI)—This user-friendly, web-based interface permits administration of all voice mail and auto attendant functions.
The GUI is targeted for administrators familiar with web-based applications and who have little or no experience with Cisco IOS command structure.
•Command-line interface (CLI)—This text-based interface has the same administration and configuration capabilities as the GUI. Installation, upgrade, and troubleshooting functions are available only through the CLI commands. The administrator accesses this interface through a Telnet session to the router.
The CLI is targeted for installers, resellers, support personnel, and others familiar with Cisco IOS command structure and routers. For them, accessing the system using the CLI may be easier than using the GUI, especially for troubleshooting, scripting, and bulk provisioning of many sites. Refer to the Cisco Unity Express CLI Administrator Guide for Cisco CallManager Express, Release 2.0 for more information about CLI configuration.
The GUI and CLI are accessible from a PC or server anywhere in the IP network. To access the GUI, use Microsoft Internet Explorer Version 6.0 or a later release. See "Using the Initialization Wizard" on page 23. Cisco Unity Express does not support the Netscape browser. To access the CLI, Telnet to the router, then use the service-module command.
Differences Between Cisco Unity Express and Cisco Unity
Cisco Unity Express is not the same application as Cisco Unity, although both of them are in the Cisco family of voice messaging products, and the differences are:
•Cisco Unity is a Microsoft Windows-based application and uses the Microsoft Windows operating system's messaging infrastructure. Cisco Unity Express is a Linux-based application.
•Cisco Unity is usually deployed in a central location that can be networked with multiple sites. Cisco Unity Express Release 2.0 can be deployed in standalone locations that serve the local users.
However, a Cisco Unity Express system can be administered from any location that has IP connectivity with the router housing the Cisco Unity Express application. If several sites in a network use Cisco Unity Express, they can be administered individually from a single PC or server. The administrator opens a browser on a PC or server to the GUI at each site or opens a Telnet session to the CLI at each site.
•Cisco Unity supports 100 or more mailboxes and Cisco Unity Express supports 100 or fewer mailboxes.
•Cisco Unity has a larger set of features than does Cisco Unity Express Release 2.0.
Cisco Unity Express uses Cisco Unity Release 3.1 voice mail prompt recordings and prompt flow, which provides the end user with the same voice mail look-and-feel.
Interactions Between Cisco Unity Express and Cisco CME
Cisco CME is the software that controls the telephony functions. Cisco CME resides on a router, which accepts incoming and outgoing calls to your network. Cisco CME contains a call agent, which decides where an incoming or outgoing call should be sent. Cisco CME has a database of information that contains such elements as the telephone hardware identifications, extension numbers associated with the telephones, users on the system, logins, routing destinations, call handling features, and other system-wide parameters.
Cisco Unity Express is an application that enhances Cisco CME by providing the voice messaging and automated attendant capabilities. The Cisco Unity Express module contains the voice mail and auto attendant software. During the system installation process, the installer inserts this module into the Cisco CME router. A Cisco Unity Express database contains information about the voice mailboxes, auto attendant prompts, and voice messages. The Cisco Unity Express and Cisco CME databases are synchronized to ensure that calls are handled correctly and voice messages are received and stored properly.
The integrated Cisco Unity Express and Cisco CME administration software allows you to configure the voice mail and auto attendant parameters and some of the Cisco CME parameters, such as extensions and telephones. As you go through the initialization and configuration procedures, be sure to save your data so that both databases have current information.
Differences Between Cisco Unity Express and Cisco CME
Cisco Unity Express is not the same application as Cisco CME, although both of them are in the Cisco family of voice messaging products, and the differences are:
•Cisco CME requires a web administrator to configure the router and other system components. Cisco CME users and administrators are stored in the Cisco CME database. Cisco CME does not treat the web administrator as a telephone user.
Cisco Unity Express permits configured Cisco CME users to be copied into the Cisco Unity Express database. The Cisco CME administrator ID cannot be copied to the Cisco Unity Express database and, therefore, cannot be assigned as the administrator ID for Cisco Unity Express.
Caution Before starting the configuration using the GUI, the Cisco CME administrator must configure at least one telephone user on Cisco CME who will be copied to Cisco Unity Express during the initialization phase and designated as the Cisco Unity Express administrator. You need the Cisco Unity Express administrator's user ID and password to log back in to Cisco Unity Express GUI after the initialization process is completed.
•Cisco Unity Express allows only letters, numbers, and the characters underscore (_), dot (.), and dash (-) in user IDs. Any Cisco CME user IDs containing other characters cannot be copied into the Cisco Unity Express database. User IDs must start with a letter.
•Spaces are not allowed in passwords. Acceptable password characters are lowercase letters a through z, uppercase letters A through Z, digits 0 through 9, and the following symbols: - , . + = _ ! @ # $ ^ * ( ) ? / ~ < > & %
•In Release 1.0, user IDs and passwords are case sensitive.
Networking Cisco Unity Express with Other Voice Mail Systems
Cisco Unity Express supports the capability to network Cisco Unity Express with a voice-mail system located at a different site. Users can send and receive messages from subscribers on remotely located, compatible voice-mail systems configured on Cisco CallManager or Cisco CME call control platforms. Supported configurations include:
•Cisco Unity Express to Cisco Unity Express
•Cisco Unity to Cisco Unity Express
•Cisco Unity Express to Cisco Unity
For more information about configuring the networking capability, see Cisco Unity Express CLI Administrator Guide for Cisco CallManager Express, Release 2.0.
Unavailable GUI Online Help Screens
In Cisco Unity Express 2.0, selected online help screens for the GUI are not available. This section provides information for these screens.
Cisco CallManager Express Login for the Init Wizard
This help screen describes the fields for entering information about the Cisco CME system that the Cisco Unity Express system connects to. This GUI screen is reached as part of the Init Wizard setup.
Initialization Wizard - Cisco CallManager Express Login
Use this procedure to enter information about the Cisco CME system to which the Cisco Unity Express system connects. You reach this window in the Initialization Wizard after performing the following tasks:
Step 1 Log in to the system.
Step 2 Click Run Initialization Wizard.
Before You Begin
The IP address of the Cisco CME router appears in the Hostname field. By default, the host is the router on which Cisco Unity Express is installed. If your Cisco CME system is installed on a different router, enter the hostname of that router.
Procedure
Step 1 In the User Name field, enter the user ID for the Cisco CME application.
Step 2 In the Password field, enter the password for the Cisco CME application.
Step 3 To go to the Import Cisco CME Users window, click Next.
Cisco CallManager Express System Configuration
This help screen describes the fields for changing the Cisco CME system information. This GUI screen is reached when you choose Configure > CallManager Express.
Choosing the Cisco CallManager Express System
Use this procedure to enter information about the Cisco CME system to which the Cisco Unity Express system connects, including the Cisco CME GUI system administrator's name and password.
Note The system administrator account information in this window is for the Cisco CME GUI system administrator account only. To edit account information for the Cisco Unity Express system administrator, see Configuring the System Administrator's Login Account.
Procedure
Step 1 Choose Configure > CallManager Express.
Step 2 Enter the hostname or IP address of the router on which Cisco CME is installed.
Step 3 Enter the username for the Cisco CME system administrator's GUI account.
Step 4 Enter the password for the Cisco CME system administrator's GUI account.
Step 5 Enter the hostname or IP address of the router that provides SIP call control. (This is often the same router on which Cisco CME is installed.)
Step 6 Click Apply.
Step 7 Click OK.
Lost Contact Error Screen
This error screen is reached at initial login of Cisco Unity Express if there are network connectivity issues between Cisco Unity Express and the Cisco CME system, or if an incorrect Cisco CME web administrator username or password is entered.
Lost Contact
If you have reached this window, the Cisco CME web administrator username and password and the administrator username and password stored in Cisco Unity Express do not match. This could happen if, for example, the Cisco CME web administrator password is changed through the Cisco IOS command-line interface (CLI), but Cisco Unity Express is not updated.
To correct this problem, perform the following tasks:
Step 1 Ensure that you have an enable password configured on Cisco CME. If not, Cisco Unity Express accepts any password even if it does not match the one configured with the telephony or telephony-service Cisco CME command.
Step 2 Enter the correct Cisco CME hostname or IP address, username, and password.
Step 3 Enter the password again to confirm.
Step 4 Click Apply.
An error message appears if the username and password are incorrect and do not match the current authentication information on Cisco CME.
Additional References
The following sections provide references related to Cisco Unity Express.
Documents Related to Cisco Unity Express
Related Cisco IOS Documents
MIBs
MIBs
|
MIBs Link
|
•CISCO-CUE-MIB
|
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: http://www.cisco.com/go/mibs
|
RFCs
RFCs
|
Title
|
1869
|
SMTP Service Extensions
|
1893
|
Enhanced Mail System Status Codes
|
2045
|
Multipurpose Internet Mail Extensions Part One: Format of Internet Message Bodies, RFC
|
2421
|
Voice Profile for Internet Mail - Version 2
|
2821
|
Simple Mail Transfer Protocol
|
Technical Assistance
Description
|
Link
|
Technical Assistance Center (TAC) home page, containing 30,000 pages of searchable technical content, including links to products, technologies, solutions, technical tips, and tools. Registered Cisco.com users can log in from this page to access even more content.
|
http://www.cisco.com/public/support/tac/home.shtml
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