Cisco Unified Survivable Remote Site Telephony

Cisco Survivable Remote Site Telephony (SRST) 3.1 Specifications for Cisco IOS Software Release 12.3(7)T

Documentation

See Cisco Survivable Remote Site Telephony.

Feature List

See the Cisco SRST 3.1 Feature History table.

Cisco IOS Compatibility

Other Cisco IOS software releases may inherit Cisco SRST 3.1. To get a list of Cisco IOS software releases that support Cisco SRST 3.1, go to Feature Navigator.

Downloads

To download Cisco SRST 3.1 software, go to Technical Support Software Download for Cisco CME and Cisco SRST.

Cisco SRST supports Cisco CallManager firmware. For more information, see the Cisco CallManager Compatibility Matrix.

You can download firmware files from Technical Support Software Center for Voice Software.

DDTS Information

To obtain the latest Cisco SRST DDTS information, go to Bug Toolkit and search, by product, under Cisco SRS Telephony.

Cisco IP Phone Support

Cisco IP Phone

File Name of Compatible Cisco CallManager Firmware

Comments

CiscoATA-186/188

ATA030100SCCP040211A.zup

Cisco IP Phone 7902

CP7902040000SCCP040701A.sbin

Cisco IP Phone 7905G

CP7902040000SCCP040701A.sbin

Cisco IP Phone 7910

P00403020214.bin

Cisco IP Phone 7912G

CP7902040000SCCP040701A.sbin

Cisco IP Phone 7914 Expansion Module

S00103020002.bin

Cisco Wireless IP Phone 7920

cmterm_7920.3.3-01-06.bin

Cisco IP Conference Station 7935

P00503010100.bin

Cisco IP Conference Station 7936

cmterm_7936.3-3-5-0.bin

Cisco IP Phone 7940G

P00303020214.bin

Cisco IP Phone 7960G

P00303020214.bin

Cisco IP Phone 7960G

P00305000301.sbn

Signed image

Cisco IP Phone 7960G

P00305000301.sbn

Signed image

Supported Platforms and Memory Specifications

Cisco Platform

Maximum Cisco IP Phones***

Maximum Ephone-dns or Virtual  Ports

Recommended DRAM ***

Recommended  Flash Memory***

Cisco 1751-V

24

120

128

32

Cisco 1760, Cisco 1760-V

24

120

128

32

Cisco 2600XM

36

144

128

32

Cisco 2650XM, 2651XM

48

192

128

32

Cisco 2691

72

288

128

64

Cisco 3640, Cisco 3640A

72

288

128

64

Cisco 3660

240

960

128

64

Cisco 3725

144

576

128

64

Cisco 3745

240

960

128

64

Catalyst 6500 CMM**

480

960

CMM config

CMM config

Comments:

* Cisco 7200 only supports SRST 2.1 with 12.3(4)T

** Cat 6500 CMM only supports SRST 2.1 with 12.2(13)ZC

*** These recommendations were tested in Cisco IOS release 12.2(8)T for the maximum number of IP phones and virtual ports listed in this table and have not been verified for subsequent Cisco IOS releases. Cisco SRST configurations running post Cisco IOS release 12.2(8)T software may require additional memory. Memory recommendations and maximum numbers of IP phones are for common Cisco SRST configurations only. Systems with large numbers of phones and complex configurations may not work on all platforms and can require additional memory or a higher performance platform.

Compatible Voice Products

Product Name

Version(s)

Comments

Cisco CallManager

3.3, 3.2

Cisco SRST is not dependent on Cisco CallManager versions, but phone loads.

Cisco CallManager

4.0/4.0 SR1

SRST 3.1 was tested with cmterm-7940-7960-sccp.6-0-1.exe and 6-0.2.exe.

VG248

1.2.1

Verified with VG248 v1.2.1.

ATA186/188

v2-15-ms

Verified with ata18x-v2-15-ms-020927a.zup.