Dear all,

Did anyone know how to modify the Via header of outgoing SIP REQUEST by
using nua level apis? Because I want to fill the external IP of NAT that I
obtained (by using some else mechanism outside of sofia-sip).

I add "SIPTAG_VIA_STR("SIP/2.0/UDP external_ip")" when creating the handle
that is used to sent out SIP REQUEST. But it cause the duplicated Via header
of REQUEST i sent, as following :

Via: SIP/2.0/UDP 192.168.1.100;rport;branch=z9hG4b......
Via: SIP/2.0/UDP external_ip
(It is not exactly I need)

By using nua level api, is that any possible way to replace or remove the
original Via header generated by sofia-sip stack ?


Thanks for your reading, and looking forward to any possible solution?
--
James.CM.Tsai
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