Stripping Data out of the TO: field in a SIP INVITE

General Help
1

I have a customer that is running an Avaya CS1000 …when he sends us the SIP Invite he is sending extra data in the TO: Field…The issue is the phone-context=cdp.udp

I have changed the Host name and IP address in this post to protect the innocent

INVITE sip:1384;[email protected]:5060;transport=udp;user=phone;x-nt-redirect=redirect-server

Contact: sip:46539;phone-context=cdp.u[email protected]:5060;maddr=172.x.x.x;transport=udp;user=phone
To: sip:1384;[email protected];user=phone

Thank you

2

Hi

You might want to checkout http://www.voip-info.org/wiki/view/Asterisk+func+sip_header if you plan to mod through the dialplan

If you want to do it before it hits asterisk, you might want to consider a proxy before asterisk, like Kamailio

3