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Clarification of Comprehensive Call Flow

Hi All - Please help me out in understanding below questions.

1. Once agent get reserved, ICME respond ICM_CONNECT and ICM_RELEASE to CVP ICM services.

2. ICM services will forward ICM_RELEASE to IVR services which inturn forward Disconnect temp to VXML G/W

Now my question is Disconnect temp have any inbuilt mechanism which will update SIP to disconnect VRU Leg which has initated as O/B leg from CVP SIP services to VXML G/W for VRU treatment.

Because i can see BYE Msg is repeating twice, One from VXML --> CVP SIP service and CVP SIP respond 200 OK ---> VXML and one from CVP SIP ---> VXML G/W and VXML G/W respond 200 OK ---> CVP SIP service.

When i check the call flow i came know to know only CVP SIP service will send BYE Msg to disconnect VRU Leg which has initated as O/B leg from CVP SIP services to VXML G/W for VRU treatment.



SIVANESAN R       

SIVANESAN R
1 Accepted Solution

Accepted Solutions

Hi,

Can you perform the below steps on the VoiceGateway

1) Create  SIP Profile

     voice class sip-profiles 100

         request bye sip-header p-rtp-stat remove

         response 200 sip-header p-rtp-stat remove

2) Apply the Profile in the SIP Global level

      voice service voip

          sip

          sip-profiles 100

Place a test call and check do you see 2 BYE messages are exchanged.

Regards,

Senthil....

View solution in original post

7 Replies 7

sajiahma
Level 1
Level 1

Can you please share the CVP Call Server logs so that we can explain SIP messages ?

Regards

Sajid Ahmad

Sajid - Attached VXML and  Call server logs, Please check and update.

Highly appreciate your help

SIVANESAN R

SIVANESAN R

Have a look at the attached, I tested this in my LAB and I dont see two bye messages.

But even i could see two BYE MSG in production n/w

SIVANESAN R

SIVANESAN R

Hi,

Can you perform the below steps on the VoiceGateway

1) Create  SIP Profile

     voice class sip-profiles 100

         request bye sip-header p-rtp-stat remove

         response 200 sip-header p-rtp-stat remove

2) Apply the Profile in the SIP Global level

      voice service voip

          sip

          sip-profiles 100

Place a test call and check do you see 2 BYE messages are exchanged.

Regards,

Senthil....

Can you explain why is this needed ?

voice class sip-profiles 100

         request bye sip-header p-rtp-stat remove

         response 200 sip-header p-rtp-stat remove

Senthi - Now it's fine, I can see only one BYE MSG from CVP ---> VXML G/W

Thanks for your help

SIVANESAN R

SIVANESAN R
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