To enable teleconferencing on Cisco WebEx Meetings Server you must configure one CUCM system to manage call control but you can optionally configure a second CUCM system for audio high availability.
Before you configure CUCM, you must obtain your Load Balancer Point and Application Point information from your Cisco WebEx Meetings Server Audio page. Sign into your Administration site and select Settings > Audio to see this information. Load balancer points manage call load balancing and application points manage calls, conference flow, and feature control. Systems of different sizes have different numbers of load balancer points and application points and the numbers are not customized.
Size (50/250/800/2000)
High availability
Transport type
On the Audio page there is a SIP Configuration Table that displays load balancer point and application point information including IP addresses and ports. This table is also displayed on the Configuring Your Audio Settings for the First Time page that appears the first time you configure your audio settings.
To make CUCM work with Cisco WebEx Meetings Server, CUCM requires the following base and specific configurations:
Base configuration
Note
These configurations can be shared with multiple Cisco WebEx Meetings Server systems.
SIP trunk security profile
SIP profile
Specific configuration
Note
These configurations must be made for individual Cisco WebEx Meetings Server systems and cannot be shared by multiple systems.
Certificate management
SIP trunk
Route group
Route list
Route pattern
SIP route pattern
Configuration Checklist
The configuration checklist displays the number of each CUCM configuration type that you must configure for your system.
Configuring CUCM on
50-, 250-, and 800-User Systems with No High Availability
This section describes the
information required and detailed instructions on how to configure CUCM for
50-, 250-, and 800-user systems without high availability.
Information
Required
One load balance
point IP address
One application
point IP address
The number of
call-in access numbers you will configure on your system
Configuration
Procedure
Perform the
following steps:
Task
Description
Detailed Information
1
Review the existing SIP
trunk security profile and determine whether or not it satisfies your Cisco
WebEx Meetings Server setup requirement. If it does not, configure two SIP
trunk security profiles.
Review the existing SIP
profile and determine whether or not it satisfies your Cisco WebEx Meetings
Server setup requirement. If it does not, configure one SIP profile.
Configure
N route patterns by using the above route list.
N is the number of call-in access numbers that you
configured in your audio settings on the Administration site.
Configuring CUCM on
50-, 250-, and 800-User Systems with High Availability
This section describes the
information required and detailed instructions on how to configure CUCM for
50-, 250-, and 800-user systems with high availability.
Information
Required
Two load balance
point IP addresses
Two application
point IP addresses
The number of
call-in access numbers you will configure on your system
Configuration
Procedure
Perform the
following steps:
Task
Description
Detailed Information
1
Review the existing SIP
trunk security profile and determine whether or not it satisfies your Cisco
WebEx Meetings Server setup requirement. If it does not, configure two SIP
trunk security profiles.
Review the existing SIP
profile and determine whether or not it satisfies your Cisco WebEx Meetings
Server setup requirement. If it does not, configure one SIP profile.
Configure
N route patterns by using the above route list.
N is the number of call-in access numbers that you
configured in your audio settings on the Administration site.
Configuring CUCM on 2000-User Systems with No High Availability
This section describes the information required and detailed instructions on how to configure CUCM for 2000-user systems without high availability.
Information Required
Two load balance points' IP addresses
Three application points' IP addresses
The number of call-in access numbers you will configure on your system
Configuration Procedure
Perform the following steps in the order presented:
Task
Description
Detailed Information
1
Review the existing SIP trunk security profile and determine whether or not it satisfies your Cisco WebEx Meetings Server setup requirement. If it does not, configure two SIP trunk security profiles.
Review the existing SIP profile and determine whether or not it satisfies your Cisco WebEx Meetings Server setup requirement. If it does not, configure one SIP profile.
Configure N route patterns using the above route list. N is the number of call-in access numbers that you configured in your audio settings on the Administration site.
Configuring CUCM on 2000-User Systems with High Availability
This section describes the information required and detailed instructions on how to configure CUCM for 2000-user systems with high availability.
Information Required
Two load balance points' IP addresses
Four application points' IP addresses
The number of call-in access numbers you will configure on your system
Configuration Procedure
Perform the following steps in the order presented:
Task
Description
Detailed Information
1
Review the existing SIP trunk security profile and determine whether or not it satisfies your Cisco WebEx Meetings Server setup requirement. If it does not, configure two SIP trunk security profiles.
Review the existing SIP profile and determine whether or not it satisfies your Cisco WebEx Meetings Server setup requirement. If it does not, configure one SIP profile.
Configure N route patterns using the above route list. N is the number of call-in access numbers that you configured in your audio settings on the Administration site.
Configuring a SIP Trunk Security Profile for a Load Balance Point
Before You Begin
If your Cisco WebEx Meetings Server system is configured for TLS, you must import a secure teleconferencing certificate. For more information refer to the "Importing Secure Teleconferencing Certificates" section in the Administration Guide.
Procedure
Step 1
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 2
Select Cisco Unified CM Administration.
Step 3
Select System > Security > SIP Trunk Security Profile.
Step 4
Select Add New.
Step 5
Configure the following fields.
Name—Enter a name to identify your SIP trunk security profile.
Device Security Mode— Select No Secure if you want CUCM to communicate with Cisco WebEx Meetings Server using UDP/TCP. Select Encrypted if you want CUCM to communicate with Cisco WebEx Meetings Server using TLS.
X.509 Subject Name— Enter your certificate name if you want CUCM to communicate with Cisco WebEx Meetings Server using TLS.
Note
If you want CUCM to communicate with Cisco WebEx Meetings Server using TLS, a different Cisco WebEx Meetings Server system cannot share the same SIP Trunk Security Profile because each system must have a different certificate. Obtain the Cisco WebEx Meetings Server certificate name from the Administration site. For more information refer to "Managing Certificates" in the Administration Guide.
Incoming Port— Enter 5060 if you want CUCM to communicate with Cisco WebEx Meetings Server using UDP/TCP. Enter 5061 if you want CUCM communicates Cisco WebEx Meetings Server using TLS.
Note
Do not configure any of the other fields on the page. Leave them with their default settings.
Step 6
Select Save.
Configuring a SIP Trunk Security Profile for an Application Point
Before You Begin
If your Cisco WebEx Meetings Server system is configured for TLS, you must import a secure teleconferencing certificate. For more information refer to the "Importing Secure Teleconferencing Certificates" section in the Administration Guide.
Procedure
Step 1
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 2
Select Cisco Unified CM Administration.
Step 3
Select System > Security > SIP Trunk Security Profile.
Step 4
Select Add New.
Step 5
Configure the following fields.
Name—Enter a name to identify your SIP trunk security profile.
Device Security Mode— Select No Secure if you want CUCM to communicate with Cisco WebEx Meetings Server using UDP/TCP. Select Encrypted if you want CUCM to communicate with Cisco WebEx Meetings Server using TLS.
X.509 Subject Name— Enter your certificate name if you want CUCM to communicate with Cisco WebEx Meetings Server using TLS.
Note
If you want CUCM to communicate with Cisco WebEx Meetings Server using TLS, a different Cisco WebEx Meetings Server system cannot share the same SIP Trunk Security Profile because each system must have a different certificate. Obtain the Cisco WebEx Meetings Server certificate name from the Administration site. For more information refer to "Managing Certificates" in the Administration Guide.
Incoming Port— Enter 5062 if you want CUCM to communicate with Cisco WebEx Meetings Server using UDP/TCP. Enter 5063 if you want CUCM to communicate with Cisco WebEx Meetings Server using TLS.
Note
Do not configure any of the other fields on the page. Leave them with their default settings.
The standard SIP profile uses the default settings and requires no additional configuration steps.
Configuring a TLS SIP Profile
Procedure
Step 1
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 2
Select Cisco Unified CM Administration.
Step 3
Select Device > Device Settings > SIP Profile.
Step 4
Select Add New.
Step 5
Configure the following fields:
Name—Enter a name for your SIP profile.
Redirect by Application—Select the check box.
Note
Do not configure any of the other fields on the page. Leave them with their default settings.
Step 6
Select Save.
Configuring an IPv6 SIP Profile
Procedure
Step 1
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 2
Select Cisco Unified CM Administration.
Step 3
Select Device > Device Settings > SIP Profile.
Step 4
Select Add New.
Step 5
Configure the following fields:
Name—Enter a name for your SIP profile.
Enable ENAT—Select the check box.
Note
Do not configure any of the other fields on the page. Leave them with their default settings.
Step 6
Select Save.
Certificate Management
If you want CUCM to communicate with Cisco WebEx Meetings Server using TLS, you must perform the following actions:
Obtain a Cisco WebEx Meetings Server certificate from the Administration site and then upload it to CUCM.
Note
If Cisco WebEx Meetings Server uses third-party certificates, then all certificates in the certificate chain need to be uploaded to CUCM.
Download your CUCM certificate and then upload it to Cisco WebEx Meeting Server Administration site.
Note
If CUCM uses third-party certificates, then only the last certificate in the certificate chain (Root Certificate Authority (CA) certificate) needs to be uploaded to Cisco WebEx Meetings Server.
Uploading Cisco WebEx Meetings Server Certificates
Procedure
Step 1
Download and export your Cisco WebEx Meetings Server certificate.
Sign in to the Cisco WebEx Meetings Server Administration site.
Select Settings > Security > Certificates.
Copy the certificate name from the SSL Certificate section.
Select More Options > Export SSL certificate.
Save your certificate to your local hard drive.
Step 2
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 3
Select Cisco Unified OS Administration.
Step 4
Select Security > Certificate Management.
Step 5
Select Upload Certificate/Certificate Chain.
Step 6
Select CallManager-trust in the Certificate name drop-down menu.
Step 7
Select Browse button and select the certificate that you saved to your local hard drive.
Step 8
Select Upload File.
Wait for your system to indicate "Success: Certificate Uploaded."
Step 9
(Optional) If Cisco WebEx Meetings Server uses self-signed certificates, repeat steps 4 through 9 to upload the intermediate certificate and the root certificate authority (CA) certificate from certificate chain.
This procedure explains how to upload a third-party certificate to your Cisco WebEx Meetings Server.
Before You Begin
Generate a Certificate Signing Request (CSR) and send it to a third part certificate authority to apply for certificates. See Generating a Certificate Signing Request (CSR) for instructions.
The certificate authority will send you a certificate chain which can have the following:
Certificate 1 (end user) - issued to an end-user entity by an intermediate certificate authority.
Certificate 2 (intermediate) - issued to an intermediate certificate authority by a root certificate authority.
Certificate 3 (Root CA) - issued by the root certificate authority.
When you receive multiple certificates in a certificate chain, you should concatenate the three certificates into one file, with the end user certificate first.
Procedure
Step 1
Import your third-party certificate file into you Cisco WebEx Meetings Server. See Importing a SSL Certificate for instructions.
Step 2
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 3
Select Cisco Unified OS Administration.
Step 4
Select Security > Certificate Management.
Step 5
Select Upload Certificate/Certificate Chain.
Step 6
Select CallManager-trust in the Certificate name drop-down menu.
Step 7
Select Browse button and select the Root Certificate Authority (CA) certificate that you saved to your local hard drive.
This is the last, self-signed certificate from the verification chain, which is used to verify the CallManager.pem certificate.
Note
You can obtain the Root CA certificate from a certificate authority directly, at the same time the CallManager.pem certificate is created.
Step 8
Select Upload File.
Wait for your system to indicate "Success: Certificate Uploaded."
This procedure is required only if CUCM uses self-signed certificates. If CUCM uses third party certificates, you should upload only the last certificate (Root CA certificate) in the certificate chain to your Cisco WebEx Meeting Server. Contact your Certificate Authority (CA) for information on how to obtain a Root CA certificate.
Refer to your CUCM documentation for more information on generating CUCM certificates.
Procedure
Step 1
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 2
Select Cisco Unified OS Administration.
Step 3
Select Security > Certificate Management.
Step 4
Search for the certificate in "Certificate Name" field for the certificate with name "CallManager". Select the ".PEM File" field.
Step 5
Select Download to save the CUCM certificate (CallManager.pem) on your local hard drive.
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 2
Select
Cisco
Unified CM Administration.
Step 3
Select
Device > Trunk.
Step 4
Select
Add
New.
Step 5
On the
Trunk
Type drop-down menu select
SIP
Trunk.
Note
Do not change
any other fields on this page. Leave them at their default settings.
Note
Leave the Media Termination Point Required check box deselected on the Trunk Configuration page when CUCM is communicating with Cisco WebEx Meeting Server. If you are not using Cisco WebEx Meetings Server with CUCM SIP audio, you can select the Media Termination Point Required check box when providing telephony services using a third-party PBX infrastructure.
Step 6
Select
Next.
Step 7
Configure the
following fields:
Device
Name—Enter a name for the SIP trunk.
Device
Pool—Select an appropriate device pool from the drop-down menu.
To determine which Cisco Unified Communications Manager Group has been configured on that device pool, select System > Device Pool menu. To verify which Cisco Unified Communications Managers are part of this group, select System > Cisco Unified CM Group.
Note
Record the IP addresses of the primary and secondary server. You will enter these IP addresses when you configure your audio settings in Cisco WebEx Meetings Server. See "Configuring Your Audio Settings for the First Time" in the Administration Guide for more details. See Cisco WebEx Meetings Server Install and Upgrade Guides.
Destination
Address—Enter your load balance point IPv4 address. Refer to the SIP
Configuration table on your Administration Site Audio page the IP address.
Destination
Address IPv6—Enter your load balance point IPv6 address if you want to enable
IPv6 between CUCM and Cisco WebEx Meetings Server.
Destination
Port—Enter
5060 if you want CUCM to communicate with Cisco
WebEx Meetings Server using UDP/TCP. Enter
5061 if you want CUCM to communicate with Cisco
WebEx Meetings Server using TLS.
SIP Trunk
Security Profile—Select your load balance point's security profile from the
drop-down menu.
SIP
Profile—Select
Standard SIP Profile if you want CUCM to communicate
with Cisco WebEx Meetings Server using UDP/TCP. Select
TLS SIP Profile if you want CUCM to communicate with
Cisco WebEx Meetings Server using TLS. Select
IPv6 SIP Profile if you want to enable IPv6 between
CUCM and Cisco WebEx Meetings Server.
Calling
Search Space—Select a Calling Search Space that can call the phone numbers and
route patterns configured in CUCM that you want Cisco WebEx Meetings Server to
call out to. Select
Call Routing >
Class of Control >
Calling Search Space. A calling search space
consists of an ordered list of route partitions that are typically assigned to
devices or route patterns. Calling search spaces determine the partitions that
calling devices search when they are attempting to complete a call. For more
information, refer to "Calling Search Space Configuration" in the
Cisco
Unified Communications Manager Administration Guide or "Partitions and
Calling Search Spaces" in the
Cisco
Unified Communications Manager System Guide.
Rerouting Calling Search Space—Select a Calling Search Space
that contains the route partition that is configured for the SIP route pattern
from the section below, "Configuring a SIP Route Pattern." If this is set to
< None >, then this will only be
able to route calls to route patterns with a route partition set to
< None >, so the SIP route pattern
will need to have the route partition set to
< None >. This configuration is
necessary to enter meetings in Cisco WebEx Meetings Server. For more
information, refer to "Calling Search Space Configuration" in the
Cisco Unified Communications Manager Administration
Guide or "Partitions and Calling Search Spaces" in the
Cisco Unified Communications Manager System Guide
for more information.
Note
Do not change
any other fields on this page. Leave them at their default settings.
Step 8
Select
Save.
Step 9
Select
Reset and then select
Reset
and Restart in the pop-up window.
You must reset
the SIP trunk to complete your configuration.
Configuring a SIP
Trunk for an Application Point
Procedure
Step 1
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 2
Select
Cisco
Unified CM Administration.
Step 3
Select
Device >
Trunk.
Step 4
Select
Add
New.
Step 5
On the
Trunk
Type drop-down menu select
SIP
Trunk.
Note
Do not change
any other fields on this page; leave the values at their default settings.
Step 6
Select
Next.
Step 7
Configure the
following fields:
Device
Name—Enter a name for your SIP trunk.
Device
Pool—Select
Default from the drop-down menu.
Destination
Address—Enter the application server IPv4 address.
Destination
Address IPv6—Enter your application server IPv6 address if you want to enable
IPv6 between CUCM and Cisco WebEx Meetings Server.
Destination
Port—Enter
5062 if you want CUCM to communicate with Cisco
WebEx Meetings Server by using UDP/TCP. Enter
5063 if you want CUCM to communicate with Cisco
WebEx Meetings Server by using TLS.
SIP Trunk
Security Profile—Select your application server security profile from the
drop-down menu.
SIP
Profile—Select
Standard SIP Profile if you want CUCM to communicate
with Cisco WebEx Meetings Server by using UDP/TCP. Select
TLS SIP Profile if you want CUCM to communicate with
Cisco WebEx Meetings Server by using TLS. Select
IPv6 SIP Profile if you want to enable IPv6 between
CUCM and Cisco WebEx Meetings Server.
Calling
Search Space—Select a Calling Search Space that can call the phone numbers and
route patterns configured in CUCM that you want to enable Cisco WebEx Meetings
Server to call. Select
Call Routing >
Class of Control >
Calling Search Space. A calling search space
consists of an ordered list of route partitions that are typically assigned to
devices or route patterns. Calling search spaces determine the partitions that
calling devices search when they are attempting to complete a call. If this is
set to
< None >, this will only be able to call
devices or route patterns with a partition set to
< None >. For more information, refer to
Calling Search Space Configuration in the
Cisco
Unified Communications Manager Administration Guide or
Partitions and Calling Search Spaces in the
Cisco
Unified Communications Manager System Guide.
Note
Do not change any other fields on this page; leave the values at
their default settings.
Note
Leave the Media Termination Point Required check box deselected on the Trunk Configuration page when CUCM is communicating with Cisco WebEx Meeting Server. If you are not using Cisco WebEx Meetings Server with CUCM SIP audio, you can select the Media Termination Point Required check box when providing telephony services using a third-party PBX infrastructure.
Step 8
Select
Save.
Step 9
Select
Reset and then select
Reset
and Restart in the pop-up window.
You must reset
the SIP trunk to complete the configuration.
Configuring a Route Group
Procedure
Step 1
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 2
Select Cisco Unified CM Administration.
Step 3
Select Call Routing > Route/Hunt > Route Group.
Step 4
Select Add New.
Step 5
Configure the following fields
Route Group Name—Enter a name for your route group.
Distribution Algorithm. Select Circular in drop-down menu.
Note
By selecting Circular, you enable CUCM to distribute a call to idle or available users starting from the (N+1)th member of a route group, where the Nth member is the member to which CUCM most recently extended a call. If the Nth member is the last member of a route group, CUCM distributes a call starting from the top of the route group.
Find Devices to Add to Route Group—Select SIP trunk of Load Balance Point in the Available Devices list. Then select Add to Route Group.
Note
Do not change any other fields on this page. Leave them at their default settings.
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 2
Select Cisco Unified CM Administration.
Step 3
Select Call Routing > Route/Hunt > Route Pattern.
Step 4
Select Add New.
Step 5
Configure the following fields
Route Pattern—Enter a name for your route pattern.
Route Partition—Select a route partition that is accessible by phones or devices that can call Cisco WebEx Meetings Server. If this set to < None > any device configured in CUCM would be able to call Cisco WebEx Meetings Server. For more information, refer to "Calling Search Space Configuration" in the Cisco Unified Communications Manager Administration Guide or "Partitions and Calling Search Spaces" in the Cisco Unified Communications Manager System Guide.
Gateway/Route List—Select the previously configured route list from the drop-down menu.
Note
Do not change any other fields on this page. Leave them at their default settings.
Step 6
Select Save.
Configuring a SIP Route Pattern
Procedure
Step 1
Sign in to http://ccm-server/, where ccm-server is the fully-qualified domain name or IP address of the Cisco Unified Communications Manager server.
Step 2
Select Cisco Unified CM Administration.
Step 3
Select Call Routing > SIP Route Pattern.
Step 4
Select Add New.
Step 5
Configure the following fields
Route Partition—Select a route partition that is included in the calling search space that is configured as the Rerouting Calling Search Space from the section "Configuring a SIP Trunk for an Application Point" above. If this set to < None > then the Rerouting Calling Search Space configured for the SIP trunk for an application point must be set to < None >. For more information refer to "Calling Search Space Configuration" in the Cisco Unified Communications Manager Administration Guide or "Partitions and Calling Search Spaces" in the Cisco Unified Communications Manager System Guide.
Pattern Usage—Select IP Address Routing.
IPv4 Pattern—Enter the application point IP address. Refer to the SIP Configuration table on your Administration Site Audio page the IP address.
SIP Trunk—Select the previously configured SIP trunk for the application point from the drop-down menu.
Note
Do not change any other fields on this page. Leave them at their default settings.
Step 6
Select Save.
CUCM Feature Compatibility and Support
The following tables provide feature compatibility information for the supported versions of CUCM.
CUCM Feature Compatibility
Cisco WebEx Meetings Server supports CUCM 7.1, 8.6, 9.0, and 9.1.
The following table provides feature compatibility for the supported versions of CUCM. Cisco WebEx Meetings Server system capacity is not affected by any of your configuration choices.
Note
Cisco WebEx Meetings Server does not support any unlisted CUCM versions or other third-party SIP proxy management applications.
Feature
CUCM 7.1
CUCM 8.6
CUCM 9.0-9.1
Pre-Conditions/Remarks
Call out (IPv6)
Yes
Yes
Yes
Configure your Cisco WebEx Meetings Server system with IPv6 addresses during installation process.
Call in (IPv6)
Yes
Yes
Yes
Configure your Cisco WebEx Meetings Server system with IPv6 addresses during installation process.
TLS/SRTP
Yes
Yes
Yes
Configure your Cisco WebEx Meetings Server system with security certificates.
RFC2833
Yes
Yes
Yes
Select this option during CUCM SIP trunk configuration.
KPML
Yes
Yes
Yes
Select this option during CUCM SIP trunk configuration.
Keepalive—Cisco WebEx Meetings Server sending
Yes
Yes
Yes
Performed using the SIP OPTIONS message.
Keepalive—Cisco WebEx Meetings Server receiving
No
Yes
Yes
Performed using the SIP OPTIONS message.
Quality of Service
Yes
Yes
Yes
For control packets.
TCP
Yes
Yes
Yes
Make sure your default ports are configured as follows: 5060 for conferencing load balance points; 5062 for conferencing application points.
TLS
Yes
Yes
Yes
Make sure your default ports are configured as follows: 5061 for conferencing load balance points; 5063 for conferencing application points.
UDP
Yes
Yes
Yes
Make sure your default ports are configured as follows: 5060 for conferencing load balance points; 5062 for conferencing application points.
Self-signed certificates
Yes
Yes
Yes
n/a
Third-party certificates
Yes
Yes
Yes
n/a
Telephony Call Features
Cisco WebEx Meetings Server supports the following CUCM call features.
Note
The CUCM 9.0 software that is part of the BE6K (Business Edition 6000) product is also supported by Cisco WebEx Meetings Server.
Feature
CUCM 7.1
CUCM 8.6
CUCM 9.0-9.1
Call hold
Yes
Yes
Yes
Call un-hold
Yes
Yes
Yes
Caller ID display on EP
Yes
Yes
Yes
Calling name display on EP
Yes
Yes
Yes
Call transfer (IPv4 to IPv4)
Yes
Yes
Yes
Call transfer (IPv6 to IPv4)
Yes
Yes
Yes
Call transfer (IPv4 to IPv6)
No
No
Yes
Call transfer (IPv6 to IPv6)
No
No
Yes
Telephony Media Features
Cisco WebEx Meetings Server supports participants with G.711/G.722/G.729 codecs at the same time. Changing your codec configuration does not affect system performance.