[pjsip] [PJSIP] How to make port of via and contact is the same in REGISTER?

[Cheng, 成]

Hi:
    I am using pjsip v1..4 to implement my application, and I want my app using connect to SIP server by TCP.
    The pjsip creates a random socket port and modify the via header (e.g. port 2050) to register to sip server in transport layer.
    But, in the Contact header, the specific port is 5060 orignal.
    I know the acc_check_nat_addr() will auto update the information, then unregister and register.
    I want the port in the Via and Contact is the same value in the first REGISTER by TCP connection.
    How can I do to reach the goal?

Best Regards
DaCheng


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