75
Cisco Unified SCCP and SIP SRST System Administrator Guide
OL-13143-04
Cisco Unified SIP SRST 4.1
Revised: February 3, 2011
This chapter describes the features and provides the configuration information for Cisco Unified
SIP SRST 4.1:
•
Out-of-Dialog REFER(OOD-R)
•
Digit Collection on SIP Phones
•
Caller ID Display
•
Disabling SIP Supplementary Services for Call Forward and Call Transfer
•
Idle Prompt Status
Note
With Cisco IOS Release 12.4(15)T, the number of SIP phones supported on each platform is now
equivalent to the number of SCCP phones supported. For example, 3845 now supports 720 phones
regardless of whether these are SIP or SCCP.
Contents
•
Prerequisites for Cisco Unified SIP SRST 4.1, page 75
•
Restrictions for Cisco Unified SIP SRST 4.1, page 76
•
Information About Cisco Unified SIP SRST 4.1, page 76
•
How to Configure Cisco Unified SIP SRST 4.1 Features, page 79
•
Where to Go Next, page 83
Prerequisites for Cisco Unified SIP SRST 4.1
•
Cisco IOS Release 12.4(15)T or a later release.
•
Cisco Unified IP Phones 7911G, 7941G, 7941GE, 7961G, 7961GE, 7970G, and 7971GE require
firmware load 8.2(1) or a later version.
•
For the prerequisites for the Enhanced 911 Services for Cisco Unified SRST feature introduced in
Version 4.1, see
Prerequisites for Enhanced 911 Services
.