Hello,

The SIP To tag is been modified by a Cisco BTS. What is happening is:

Invite Leg1

<sip:4444#19543845555@10.10.10.10>

Leg2 - 180 Ringing

To: <sip:4444%2319543845555@10.10.10.10>;tag=1_1146_t152539_7057

The call is failing because the # is been changed with a %23 (which is the ASCII number for # plus a %).

Is there anything I can do to solve this without eliminating the #? I need the # for billing purposes.

Best regards.