Jerry,
The quick answer is no. Each nua instance needs it's own port #.
There are a few threads that talk about how to maintain multiple sip
addresses / endpoints with a single nua instance.
Search the archives for "multiple"
Colin..
Jerry Richards wrote:
> Hello,
>
> As I mentioned before, I am building a device that I would like to use to
> REGISTER multiple (up to 50) SIP user IDs and make incoming/outgoing calls.
>
> I am attempting to invoke nua_create() once for each user ID. However, I
> want to bind to only one IP Address and port. If I specify the following
> parameter in each invocation nua_create(), then the second nua_create()
> fails to bind because the address is in use:
>
> NUTAG_URL("sip:192.168.72.191:5060"),
>
> Alternatively, if I ONLY include the above parameter in the first
> nua_create() call (and omit it on subsequent nua_create() calls), then the
> second NUA will fail to send the REGISTER message out of the device and
> times-out.
>
> Can I have multiple sofia-sip NUAs bound to the same IP address and port #?
>
> Best Regards,
> Jerry
>
>
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