HI there,
We are having problems registering our ip phones with the external SIP provider. The phones are trying to use the internal IP address for some reason, even though NAT has been configured on sep.cnf.xml.
Via: SIP/2.0/TCP 10.0.100.7:49359;branch=z9hG4bK6584c39d^M
From: "528002635365" <sip:528002635365@10.0.100.7>;tag=f8a5c5eb8c2401da33253dcb-40cfc03a^M
To: <sip:sip.telnyx.com>^M
Call-ID: f8a5c5eb-8c24009e-1528bcc5-1cad1976@10.0.100.7^M
Session-ID: 205ae94000105000a000f8a5c5eb8c24;remote=00000000000000000000000000000000^M
Date: Wed, 16 May 2018 12:52:50 GMT^M
CSeq: 1000 REFER^M
User-Agent: Cisco-CP8845/12.1.1^M
Expires: 10^M
Max-Forwards: 70^M
Contact: <sip:jnolla@10.0.100.7:49359;transport=tcp>;+u.sip!devicename.ccm.cisco.com="SEPF8A5C5EB8C24"^M
Require: norefersub^M
Referred-By: "528002635365" <sip:528002635365@10.0.100.7>^M
Refer-To: cid:7ceb94f9@10.0.100.7^M
Content-Id: <7ceb94f9@10.0.100.7>^M
Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE^M
Content-Length: 1689^M
Content-Type: application/x-cisco-alarm+xml^M
Content-Disposition: session;handling=required^M
Here is the configuration file entries:
<natEnabled>true</natEnabled>
<natAddress>XX.XX.XX.XX</natAddress>
We have been searching for possible issues, but can't find what it's really the issue.
