Specifications

Cisco Unified Survivable Remote Site Telephony Feature Roadmap
Feature Roadmap
17
Cisco Unified Survivable Remote Site Telephony Version 4.0 System Administrator Guide
Secondary Dial Tone
A secondary dial tone is available for Cisco Unified IP Phones running Cisco SRST. The secondary dial
tone is generated when a user dials a predefined PSTN access prefix. An example would be the different
dial tone heard when a designated number is pressed to reach an outside line.
The secondary dial tone is created through the secondary dialtone command. For more information, see
the “Configuring a Secondary Dial Tone” section on page 57.
Enhancement to the show ephone Command
Theshow ephone command has been enhanced to display the following:
• The configuration and status of additional phones (new keywords: 7905, 7914, 7935, ATA )
• The status of all phones with the call-forwarding all (CFA) feature enabled on at least one of their
DNs (new keyword: cfa)
For more information, see the show ephone command in the Cisco Unified Survivable Remote Site
Telephony (SRST) Command Reference (All Versions).
System Log Messages for Phone Registrations
Diagnostic messages are added to the system log whenever a phone registers or unregisters from
Cisco SRST.
Three-Party G.711 Ad Hoc Conferencing
Cisco SRST supports three-party ad hoc conferencing using the G.711 coding technique. For
conferencing to be available, an IP phone must have a minimum of two lines connected to one or more
buttons.
For more information, see the “Enabling Three-Party G.711 Ad Hoc Conferencing” section on page 100.
Support for Cisco VG248 Analog Phone Gateway Version 1.2(1) and Higher
The Cisco VG248 Analog Phone Gateway is a mixed-environment solution, enabled by Cisco AVVID
(Architecture for Voice, Video and Integrated Data), that allows organizations to support their legacy
analog devices while taking advantage of the new opportunities afforded through the use of IP telephony.
The Cisco VG248 is a high-density gateway for using analog phones, fax machines, modems, voice-mail
systems, and speakerphones within an enterprise voice system based on Cisco Unified CallManager.
During Cisco Unified CallManager fallback, Cisco SRST considers the Cisco VG248 to be a group of
Cisco Unified IP Phones. Cisco 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 is also available in Cisco
SRST Version 2.1.
For more information, see the Cisco VG248 Analog Phone Gateway Data Sheet and the Cisco VG248
Analog Phone Gateway Version 1.2(1) Release Notes.