Session Manager Adaptations 2

[gmfallon]

I am trying to configure a SIP trunk between Global Crossing and Session Manager without an SBC. The call sets up but dies 32 seconds in because Global Crossing never receives an ACK back from its 200 OK.

In my CM trace, I can see CM attempting to send the ACK back to Global Crossing but they never receive it. I'm thinking I have my Adaptation wrong.

I am using the DigitConversionAdapter with Module parameters set to:

osrcd=<SIP Domain Name> odstd=<ip of Global Crossing SBC> iodstd=<SIP Domain Name>

Anyone have any luck with this?

 

[ryfisher2001]

i am having the same issue. Please let me know if you ever resolved it. thanks!

 

[DetroitGuy]

The problem is that Global Crossing is using IP addresses in their SIP invites and Session Manager is expecting the domain name. We ended up having Global Crossing make the changes on their SBC to send us domain name instead of IP address in their invites.

I have been told it is possible to do in Session Manager but I could not figure it out and there is little to no documentation.

 

[gmfallon]

I did work this out. First, be sure to peer with Global Crossing's Acme Packet SBC not Sonus (issues with ACKs and 200 OK). We couldn't get it to work. You'll need to set up an Adaptation which can be found in the Routing section. You want to have something like:

Adaptation Module = <add> DigitConversionAdapter

In the Adaptation Details page, configure as follows:
- Adaptation name – Set to any descriptive string.
- Module name - Select “DigitConversionAdapter” from the drop-down list; if no module name is present, select “<click to add module>” and enter “DigitConversionAdapter”.
- Module parameter - Enter osrcd=mydomain.com odstd=<IP of Global Crossing's SBC>

osrcd = Overwrite Source Domain
odstd = Overwrite Destination Domain

I hope this helps.

 

[gmfallon]

Oops - I meant to remove "Adaptation Module = <add> DigitConversionAdapter" from my previous post as what follows is more descriptive.

 

[ryfisher2001]

Thanks guys. I noticed the issue sip invites and domain name and they went back and changed to Acme Packet SBC. So i think we are on the right track there. Your post confirms my theory to them. I will make sure to try the Adaptation when we attempt to turn this up again. I appreciate the help!