Also ->
-Enable Early Offer (MTP if needed) on the SIP profile (CUCM 8.5+) or
Effort Early Offer (no MTP) on the SIP Profile (CUCM 10.5+)
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/rel_notes/10_5_1/CUCM_BK_CE15D2A0_00_cucm-release-notes-1051/CUCM_BK_CE15D2A0_00_cucm-release-notes-1051_chapter_01.html#CUCM_TP_B8E6026A_00
-MTP Required (any version)
MTP Required limits you to a single codec in the outbound offer and
ties your max permitted calls to the number of MTP Resources in your MRGL.
Sreekanth's suggestion is the simplest to fix your specific problem, but
early offer usually works better overall with most Service providers.
HTH,
--
Adam
On 5/23/2016 11:23 AM, Sreekanth Narayanan (sreenara) wrote:
This happens when the CUBE receives the prompt from the ITSP over RTP
and is not aware of where it has to stream this prompt because CUCM
does Delayed Offer by default. So Cube doesnt have the phone's IP address.
You can fix this by forcing CUCM to send provisional acknowöedgement by:
1. putting voice-class sip rel1xx require "100rel" on the dial peers
facing CUCM, and
2. Under sip profile of sip trunk facing CUBE, change the Rel1xx
parameter to Send Prack for all 1xx messages.
Sreekanth
Sent from a phone.
-------- Original message --------
From: Asim Mekki Basheer <[email protected]>
Date: 5/23/16 4:37 PM (GMT+05:30)
To: [email protected]
Subject: [cisco-voip] No ring back Tone For Switched off Mobile
Hi
The issue is, when call out to a Switched off mobile phone, the IP
Phone can't hear the correct ringback tone either Busy Tone nor
Service Provider's Ringtone, it hears normal Ringback tone same as
when the mobile phone switched on instead
The call flow:
IP Phone -- CUCM -- SIP Trunk-- CUBE --SIP Trunk -- Service Provider .
(CUCM 7.5, VGW (2921)
Regards
_______________________________________________
cisco-voip mailing list
[email protected]
https://puck.nether.net/mailman/listinfo/cisco-voip
_______________________________________________
cisco-voip mailing list
[email protected]
https://puck.nether.net/mailman/listinfo/cisco-voip
