Cisco Unified SCCP and SIP SRST Feature Overview
Support for Cisco Unified IP Phones and Platforms
24
Cisco Unified SCCP and SIP SRST System Administrator Guide
OL-13143-04
See
Cisco Unified CME and Cisco IOS Software Version Compatibility Matrix
for related compatibility
information.
Cisco Unified IP Phone Support
For the most up-to-date information about Cisco Unified IP Phone support, see
Compatibility
Information
.
For ATAs that are registered to a Cisco Unified SRST system to participate in FAX calls, they must have
their ConnectMode parameter set to use the "standard payload type 0/8" as the RTP payload type in FAX
passthrough mode. For ATAs used with Cisco Unified SRST 4.0 and higher versions, this is done by
setting bit 2 of the ConnectMode parameter to 1 on the ATA. For more information, see the
Parameters
and Defaults
chapter in
Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator's
Guide for SCCP
.
During Cisco Unified CM fallback, Cisco Unified SRST considers the Cisco VG248 to be a group of
Cisco Unified IP phones. Cisco Unified SRST counts each of the 48 ports on the Cisco VG248 as a
separate Cisco Unified IP phone. Support for Cisco VG248 Version 1.2(1) and higher versions is
available as of Cisco SRST Version 2.1. For more information, see
Cisco VG248 Analog Phone Gateway
Data Sheet
and
Cisco VG248 Analog Phone Gateway Version 1.2(1) Release Notes
.
Platform and Memory Support
For the most up-to-date information about Platform and Memory Support, see
Compatibility
Information.
Determining Platform Support Through Cisco Feature Navigator
Cisco IOS software is packaged in feature sets that are supported on specific platforms. To get updated
information regarding platform support for this feature, access
Cisco Feature Navigator
. Cisco Feature
Navigator dynamically updates the list of supported platforms as new platform support is added for the
feature.
Availability of Cisco IOS Software Images
Platform support for particular Cisco IOS software releases is dependent on the availability of the
software images for those platforms. Software images for some platforms may be deferred, delayed, or
changed without prior notice. For updated information about platform support and availability of
software images for each Cisco IOS software release, see the online release notes or, if supported,
Cisco Feature Navigator.
For the most up-to-date information about Cisco IOS software images, see
Compatibility Information
.
Cisco Unified Communications Manager Compatibility
See
Cisco Unified Communications Manager Compatibility Matrix
.