[cisco-voip] No ring back Tone For Switched off Mobile

[Asim Mekki Basheer]

i have added the below cmd but still not working ( MTP) not checked

Regards


Subject: Re: [cisco-voip] No ring back Tone For Switched off Mobile
To: sreenara at cisco.com; asim_323 at hotmail.com
CC: cisco-voip at puck.nether.net
From: adamgfrankel at gmail.com
Date: Mon, 23 May 2016 12:25:48 -0400


  
    
  
  
    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 <asim_323 at hotmail.com> 
      Date: 5/23/16 4:37 PM (GMT+05:30) 
      To: cisco-voip at puck.nether.net 
      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
        
      
      

      
      

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