Platform and Protocol Compatibility for Unified SRST, Unified E-SRST, and Unified Secure SRST
First Published: July 30, 2018
Last Updated: March 30, 2024
Platform and Protocol Support for Unified SRST and Unified Secure SRST Features
Platform and Protocol Support for Unified E-SRST Features
This document provides information on the compatibility of Unified Survivable Remote Site Telephony features (for Unified SRST, Unified E-SRST, and Unified Secure SRST) across the Cisco Routers. Feature support is detailed by protocol and platform and was last updated for Cisco IOS XE 17.14.1a Release (Unified SRST Release 14.4).
For information on the Cisco IOS XE and Cisco IOS Release mapping with Unified SRST, see Unified CME, Unified SRST, and Cisco IOS Software Version Compatibility Matrix.
For information on feature description for Unified SRST, Unified E-SRST, and Unified Secure SRST, see Cisco Unified SCCP and SIP SRST System Administrator Guide (All Versions).
The protocols discussed in this document are:
· Session Initiation Protocol (SIP)
· Skinny Client Control Protocol (SCCP)
· Mixed Deployment (Supports both SIP and SCCP)
The platforms discussed in this document are:
· Cisco IOS XE Autonomous mode for Cisco 4000 Series Integrated Services Routers, Cisco 1000 (ISR1100 running IOS XE), Cisco 8300 Catalyst Edge Series Platforms, and Cisco 8200 Catalyst Edge Series Platforms
· Cisco IOS XE SD-WAN for Cisco 4000 Series Integrated Services Routers, Cisco 8300 Catalyst Edge Series, and Cisco 8200 Catalyst Edge Series Platforms
The following conventions are applicable to the information provided in the Feature Support sections.
Table 1: Conventions
Convention |
Description |
Yes |
The feature is supported. |
– |
The feature is not supported. |
SIP |
Session Initiation Protocol |
SCCP |
Skinny Client Control Protocol |
Unified SRST |
Unified Survivable Remote Site Telephony |
Unified E-SRST |
Unified Enhanced Survivable Remote Site Telephony |
Unified Secure SRST |
Unified Secure Survivable Remote Site Telephony |
SD-WAN |
Software Defined WAN Mode on Unified SRST |
As the feature support is consistent across Unified SRST and Unified Secure SRST, this section provides feature support information for both these products in Table 2: Unified SRST and Unified Secure SRST Feature Support.
· From Unified SRST Release 12.8 (Cisco IOS XE Amsterdam 17.2.1r), configuration and monitoring of Unified SRST using NetConf and RESTConf Yang models is supported in both Controller (SD-WAN) and Autonomous modes.
· From Unified SRST Release 12.6 (Cisco IOS XE Gibraltar 16.11.1a), support is introduced for SNMP version 3 (SNMPv3) and toll fraud prevention for line-side SIP. Unified SRST 12.6 and later releases do not support certain CLI commands configured under call-manager-fallback configuration mode to enhance security. For more information, see Cisco Unified SCCP and SIP SRST System Administrator Guide (All Versions).
· All features listed as supported for Unified SRST are also supported for Unified Secure SRST.
· If a feature is supported for both SIP and SCCP phones, then mixed deployment is supported on that platform.
For information on feature specific support for Unified SRST and Unified Secure SRST across platforms and protocols, see Table 2.
Table 2: Unified SRST and Unified Secure SRST Feature Support
Features |
Classic IOS |
Cisco IOS XE Autonomous Mode |
Cisco IOS XE Controller Mode (SD-WAN) |
|||
SIP |
SCCP |
SIP |
SCCP |
SIP |
||
Auto-Answer |
Yes |
Yes |
Yes |
Yes |
— |
|
Phone Registration to SRST (fallback) |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Transfer |
Alert Transfer |
Yes |
Yes |
Yes |
Yes |
Yes |
Attended/Consult Transfer |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Blind Transfer |
— |
Yes |
— |
— |
Yes |
|
Conference |
Meet-Me Conference |
— |
— |
— |
— |
— |
Ad-hoc Hardware Conference |
— |
— |
— |
— |
— |
|
Ad-hoc Software Conference |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Video Conference |
— |
— |
— |
— |
— |
|
Hold/Resume |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Headset Answer |
Yes |
Yes |
Yes |
Yes |
— |
|
Line Label |
Yes (except 3905, 6901, 6921) |
Yes (except 69xx series) |
Yes |
Yes (except 69xx series) |
— |
|
Shared Line |
— |
Yes |
— |
Yes |
— |
|
Caller ID Display |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Feature Access Code (FAC) |
Yes |
Yes |
Yes |
Yes |
— |
|
Voicemail |
Yes |
Yes |
Yes |
Yes |
— |
|
Message Waiting Indicator (MWI) |
Yes |
Yes |
Yes |
Yes |
— |
|
Reset/Restart Phones via Reset/Restart Command |
— |
Yes |
— |
Yes |
— |
|
Do Not Disturb (DND) |
Yes (except 3905, 6901) |
Yes |
Yes |
Yes |
— |
|
DTMF |
Yes |
— |
Yes |
— |
Yes |
|
Key Expansion Module (KEM) |
Yes (only 8961) |
Yes (only on 7962/7965/7975, 8941, 8945) |
Yes (Only 88xx Series) |
Yes (only on 7962/7965/7975, 8941, 8945) |
Yes (Only 88xx Series) |
|
Bulk Registration Support |
Yes (except 6921) |
— |
Yes |
— |
— |
|
Enabling/Disabling KPML |
Yes |
— |
Yes |
— |
— |
|
Alias Feature |
Yes |
Yes |
Yes |
Yes |
— |
|
Call Forward |
All |
Yes |
— |
Yes |
Yes |
Yes |
Busy |
Yes |
Yes |
Yes |
Yes |
Yes |
|
No Answer |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Mailbox |
Yes |
— |
Yes |
Yes |
Yes |
|
Unregistered |
— |
— |
— |
— |
— |
|
Night-Service |
— |
— |
— |
— |
— |
|
Max-Length |
— |
— |
— |
— |
— |
|
Call Forward All Softkey on Phone |
Yes |
— |
Yes |
— |
— |
|
Multicast MOH |
— |
Yes |
— |
Yes |
— |
|
Unicast MOH |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Basic Automatic Call Distribution (B-ACD) |
Yes |
Yes |
Yes |
Yes |
— |
|
Voice Hunt Group |
Yes |
Yes |
Yes |
Yes |
— |
|
Ephone Hunt Group |
— |
Yes |
— |
Yes |
— |
|
Voice Hunt Group/Ephone Hunt Group Statistics (Only for static members) |
Yes |
Yes |
Yes |
Yes |
— |
|
Voice Class Codec |
Yes |
— |
Yes |
— |
Yes |
|
Audio Codecs |
G.722 |
— |
Yes |
Yes |
Yes |
Yes |
G.711 |
Yes |
Yes |
Yes |
Yes |
Yes |
|
G.729 |
Yes |
Yes |
Yes |
Yes |
Yes |
|
iLBC |
— |
Yes |
Yes |
Yes |
Yes |
|
Translation Profile |
Yes |
Yes |
Yes |
Yes |
— |
|
Busy Trigger Per Button |
Yes |
— |
Yes |
— |
— |
|
Conference Blocking |
Yes |
Yes |
Yes |
Yes |
— |
|
Transfer Blocking |
Yes |
Yes |
Yes |
Yes |
— |
|
COR |
Yes |
Yes |
Yes |
Yes |
Yes |
|
VRF for Unified SRST |
Yes |
Yes |
Yes |
— |
— |
|
SNMP/MIB |
— |
Yes |
— |
Yes |
— |
|
Speed Dial |
Yes |
Yes |
Yes |
Yes |
— |
|
Call Waiting |
Yes |
Yes |
Yes |
Yes |
— |
|
Forced Authorization Code |
— |
Yes |
— |
Yes |
— |
|
Redial |
Yes |
Yes |
Yes |
Yes |
— |
|
Speakerphone |
Dialing |
Yes |
Yes |
Yes |
Yes |
— |
Answering |
Yes |
Yes |
Yes |
Yes |
— |
|
System Message |
Yes |
Yes |
Yes |
Yes |
— |
|
After Hours |
Yes |
Yes |
Yes |
Yes |
— |
|
Call Waiting Ring |
— |
Yes |
— |
Yes |
— |
|
Configurable TLS Cipher Policy |
— |
— |
Yes |
Yes |
— |
|
SIP OAuth Authentication |
— |
— |
Yes |
— |
— |
This section provides feature support information specific to Cisco Unified Enhanced Survivable Remote Site Telephony (Unified E-SRST). In comparison to Unified SRST and Unified Secure SRST, Unified E-SRST provides support for features such as Shared Line, BLF, Video, and Voice Hunt Group feature support.
Note:
· If a feature is supported for both SIP and SCCP phones, then mixed deployment is supported on that platform.
· Unified E-SRST is not supported for IOS XE Controller (SD-WAN) mode.
· From Unified E-SRST Release 12.6 (Cisco IOS XE Gibraltar 16.11.1a), support is introduced for toll fraud prevention on Line Side SIP of Unified E-SRST.
For information on feature specific support for Unified E-SRST across platforms and protocols, see Table 3: Unified E-SRST Feature Support.
Table 3: Unified E-SRST Feature Support
Features |
Classic IOS |
Cisco IOS XE Autonomous Mode |
|||
SIP |
SCCP |
SIP |
SCCP |
||
Anonymous Call Block |
— |
— |
— |
— |
|
Auto-Answer |
Yes |
Yes |
Yes |
Yes |
|
Auto Register |
— |
— |
— |
— |
|
Auto Assign |
— |
— |
— |
— |
|
Authenticate Register |
— |
— |
— |
— |
|
Barge |
— |
— |
— |
— |
|
cBarge/Merge |
— |
— |
— |
— |
|
Call Park |
— |
— |
— |
— |
|
Call Park Resume |
— |
— |
— |
— |
|
Pickup |
Group Pickup |
— |
— |
— |
— |
Directed Call Pickup |
— |
— |
— |
— |
|
Distinctive Ring for Parked Call Recall |
— |
— |
— |
— |
|
Park Monitor |
— |
— |
— |
— |
|
Directed Call Park |
— |
— |
— |
— |
|
Extension Mobility |
— |
— |
— |
— |
|
Transfer |
Alert Transfer |
Yes |
Yes |
Yes |
Yes |
Attended Consult Transfer |
Yes |
Yes
|
Yes |
Yes |
|
Blind Transfer |
— |
Yes |
— |
Yes |
|
Conference |
Meet-Me Conference |
— |
— |
— |
— |
Ad-hoc Hardware Conference |
— |
— |
— |
— |
|
Ad-hoc Software Conference |
Yes |
Yes |
Yes |
Yes |
|
Video Conference |
— |
— |
— |
— |
|
Hold/Resume |
Yes |
Yes |
Yes |
Yes |
|
Intercom |
— |
— |
— |
— |
|
Fast Track |
— |
— |
— |
— |
|
Headset Answer |
Yes |
Yes |
Yes |
Yes |
|
Line Label |
Yes (except 3905, 6901, 6921) |
Yes (except 69xx series) |
Yes |
Yes (except 69xx series) |
|
My Phone Apps - View On Phone |
Speed Dial |
— |
— |
— |
— |
Personal Speed Dial/Fast Dial |
— |
— |
— |
— |
|
BLF Speed Dial |
— |
— |
— |
— |
|
Voice Hunt Groups |
— |
— |
— |
— |
|
After Hours |
— |
— |
— |
— |
|
Single Number Reach (SNR) |
— |
— |
— |
— |
|
Active Call Park List |
— |
— |
— |
— |
|
My Phone Apps - Add/Delete/Modify from Phone |
Speed Dial |
— |
— |
— |
— |
Fast Dial |
— |
— |
— |
— |
|
BLF Speed Dial |
— |
— |
— |
— |
|
Single Number Reach (SNR) |
— |
— |
— |
— |
|
Park Retrieval |
— |
— |
— |
— |
|
Paging |
Multicast (Only with G711ulaw codec) |
— |
— |
— |
— |
Unicast (Only with G711ulaw codec) |
— |
— |
— |
— |
|
Shared Line |
Yes |
Yes |
Yes |
Yes |
|
Mixed Shared Line |
Yes |
Yes |
Yes |
Yes |
|
Voice Hunt Group with Shared Line |
Yes |
Yes |
Yes |
Yes |
|
Caller ID Display |
Yes |
Yes |
Yes |
Yes |
|
Caller ID Blocking |
— |
— |
— |
— |
|
Feature Access Code (FAC) |
Yes |
Yes |
Yes |
Yes |
|
Call Transfer Recall |
— |
— |
— |
— |
|
Voicemail |
Yes |
Yes |
Yes |
Yes |
|
Message Waiting Indicator (MWI) |
Yes |
Yes |
Yes |
Yes |
|
Video |
Yes |
Yes |
Yes |
Yes |
|
Locale Support |
— |
— |
— |
— |
|
Reset/Restart Phones via Reset/Restart Command |
— |
Yes |
— |
Yes |
|
Button Layout/Softkey Template |
— |
— |
— |
— |
|
Directory Services |
Local Directory |
— |
— |
— |
— |
Local Speed Dial |
— |
— |
— |
— |
|
Personal Speed Dial |
— |
— |
— |
— |
|
Privacy |
— |
— |
— |
— |
|
iDivert |
— |
— |
— |
— |
|
Enhanced iDivert |
— |
— |
— |
— |
|
Do Not Disturb (DND) |
Yes (except 3905, 6901) |
Yes |
Yes |
Yes |
|
DTMF |
Yes |
— |
Yes |
— |
|
Feature Button/Programmable Line Key (PLK) |
— |
— |
— |
— |
|
Key Expansion Module (KEM) |
Yes (only 8961) |
Yes (only on 7962/7965/7975, 8941, 8945) |
Yes (Only 88xx Series) |
Yes (only on 7962/7965/7975, 8941, 8945) |
|
Bulk Registration Support |
Yes (except 6921) |
— |
Yes |
— |
|
Upgrading/Downgrading Phone Firmware Versions |
— |
— |
— |
— |
|
Live Record |
— |
— |
— |
— |
|
Enabling/Disabling KPML |
Yes |
— |
Yes |
— |
|
Alias Feature |
Yes |
Yes |
Yes |
Yes |
|
Call Forward |
All |
Yes |
— |
Yes |
— |
Busy |
Yes |
Yes |
Yes |
Yes |
|
No Answer |
Yes |
Yes |
Yes |
Yes |
|
Mailbox |
Yes |
— |
Yes |
— |
|
Unregistered |
— |
— |
— |
— |
|
Night-Service |
— |
— |
— |
— |
|
Max-Length |
— |
— |
— |
— |
|
Call Forward All Softkey on Phone |
Yes |
— |
Yes |
— |
|
Multicast MOH |
— |
Yes |
— |
Yes |
|
Unicast MOH |
Yes |
Yes |
Yes |
Yes |
|
Basic Automatic Call Distribution (B-ACD) |
Yes |
Yes |
Yes |
Yes |
|
Night Service |
— |
— |
— |
— |
|
Voice Hunt Group |
Yes |
Yes |
Yes |
Yes |
|
Ephone Hunt Group |
— |
Yes |
— |
Yes |
|
Channel Hunt Stop |
— |
— |
— |
— |
|
Voice Hunt Group/Ephone Hunt Group Statistics (Only for static members) |
Yes |
Yes |
Yes |
Yes |
|
Voice Class Codec |
Yes |
— |
Yes |
— |
|
Audio Codecs |
G.722 |
— |
Yes |
Yes |
Yes |
G.711 |
Yes |
Yes |
Yes |
Yes |
|
G.729 |
Yes |
Yes |
Yes |
Yes |
|
iLBC |
— |
Yes |
Yes |
Yes |
|
Translation Profile |
Yes |
Yes |
Yes |
Yes |
|
Busy Trigger Per Button |
Yes |
—9 |
Yes |
— |
|
Conference Blocking |
Yes |
Yes |
Yes |
Yes |
|
Transfer Blocking |
Yes |
Yes |
Yes |
Yes |
|
COR |
Yes |
Yes |
Yes |
Yes |
|
Transcoding |
— |
— |
— |
— |
|
SNMP/MIB |
— |
Yes |
— |
Yes |
|
Web GUI |
— |
— |
— |
— |
|
IOS XE Web GUI |
— |
— |
— |
— |
|
Speed Dial |
Yes |
Yes |
Yes |
Yes |
|
Busy Lamp Field (BLF) |
Yes |
Yes |
Yes |
Yes |
|
Call Waiting |
Yes |
Yes |
Yes |
Yes |
|
Forced Authorization Code |
— |
Yes |
— |
Yes |
|
HTTP File Server (HFS) |
— |
— |
— |
— |
|
Redial |
Yes |
Yes |
Yes |
Yes |
|
Speakerphone |
Dialing |
Yes |
Yes |
Yes |
Yes |
Answering |
Yes |
Yes |
Yes |
Yes |
|
System Message |
Yes |
Yes |
Yes |
Yes |
|
Whisper Intercom |
— |
— |
— |
— |
|
Abbreviated Dialing |
— |
— |
— |
— |
|
After Hours |
Yes |
Yes |
Yes |
Yes |
|
Callback |
— |
— |
— |
— |
|
Call Waiting Ring |
— |
Yes |
— |
Yes |
|
Configurable TLS Cipher Policy |
— |
— |
Yes |
Yes |
|
SIP OAuth Authentication |
— |
— |
Yes |
— |
Obtain Documentation and Submit a Service Request
For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information, see What’s New in Cisco Product Documentation.
To receive new and revised Cisco technical content directly to your desktop, you can subscribe to the What’s New in Cisco Product Documentation RSS feed. The RSS feeds are a free service.
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1721R)
Cisco Unified Communications Manager Express Phone Feature Support
© 2024 Cisco Systems, Inc. All Rights reserved.