Incoming SIP calls to UCCE rejects with cause code 127

[harhasnapm]

this is the call Flow

SIP VXML Gateway------->CUPS-------->CVP----->ICM---->CUCM--->AGENT. Then CUPS is acting as proxy server

The Call from new SIP trunk , is received by CTI agent desktop and reserved ,but unable to reach agent phone and disconnects the calls after 18 secs with cause code reason q.850 cause=127

But the call is working fine trough analog lines which is connected to teh same gateway. So please advice  

[Amer rajai Sha'er]

Hello,

To better understand, is the problem only when the call is not recieved by Agent, can you hear WAV, is the Send to VRU node successful?

Amer

[harhasnapm]

We can hear the wave file and getting Busy Music on hold wave file , once agent is ready , agent desktop  it is changed to reserved and able to hear the ringing but call is not getting in Agent Phone .

[Renni John]

Hi It seems call routing to ip phone is getting failed .Could you please check below mentioned points , 1 , confirm agent is using correct ip phone number as instrument in CTIOS . 2 , check device target / agent targeting rule ,whether its configured properly for CVP routing clients . 3, check static route in cvp , to route calls directly to CUCM / CUPS , if calls are routing from CUPS to CUCM , check static routes in CUPS too . Regards Renni john

[harhasnapm]

We have routed the SIP trunk call to CUCM ,- back to gateway via CTI route point. Now Everything is working fine