Jan 13 12:49:32 orl-ar-openser01 /usr/sbin/kamailio[1313]: NOTICE: <script>: request_route() -> 72.31.12.137:5060 sent INVITE From: sip:2053140346;isub=33343@72.31.12.137 To: sip:16077751765@71.44.15.84:5060;user=phone with PAI: sip:2053140340@67.9.220.145 CID: SDr1ra601-881f71e7d022d9c4ae64dfccd6ff916c-8q7og02

From: sr-users <sr-users-bounces@lists.kamailio.org> on behalf of AL S <alirsm2@outlook.com>
Sent: Thursday, January 14, 2021 8:57 AM
To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>
Subject: [SR-Users] To header being malformatted.

Hi,

We noticed an issue with the way the Kamailio is handling certain messages being sent to them, specifically, the To header being relayed from Kamailio to the next hop is malformatted.

Any assistance is greatly appreciated

INVITE received by Kamailio:

Request: Invite
Request URI: sip:2053140346;isub=33343@72.31.12.137:5060;transport=udp
From: <sip:+13037819601@71.44.15.84;user=phone>;tag=gK00a85927
To: <sip:+12053140346@72.31.12.137>;tag=SDnpoa601-1c711123926
Call-ID: SDnpoa601-f1bc387aa5a486c1dd943d1b53ae8e6a-8q7og02
CSeq: 860668 INVITE
Contact: <sip:+13037819601@107.14.122.29:5060>
SDP IP: 0.0.0.0
SDP Port: 43126

INVITE forwarded by Kamailio:

Request: Invite
Request URI: sip:2053140346;isub=33343@72.31.12.137:5060;transport=udp
From: <sip:+13037819601@71.44.15.84;user=phone>;tag=gK00a85927
To: <sip:+120531403Oh.lc".3/+0]1..31.12.137>;tag=SDnpoa601-1c711123926
Call-ID: SDnpoa601-f1bc387aa5a486c1dd943d1b53ae8e6a-8q7og02
CSeq: 860668 INVITE
Contact: <sip:+13037819601@107.14.122.29:5060>
SDP IP: 0.0.0.0
SDP Port: 43126

Another example in BYE:

BYE received by Kamailio:

To: "WIRELESS CALLER" <sip:+18131111111@71.44.13.84>;tag=gK0a788ca6

BYE forwarded by Kamailio:

To: "WIRELESS CALLER" <sip:+18131112222A.++.+,-94

Thanks.