Cisco CP-7911G-CH1 Administration Guide - Page 75
Cisco Unified SIP SRST 4.1, Contents, Prerequisites for Cisco Unified SIP SRST 4.1
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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. OL-13143-04 Cisco Unified SCCP and SIP SRST System Administrator Guide 75
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