Hi,
I'm trying to design a virtual sip client for some research that I am doing, and I am using ser as my sip server. One thing I have noticed is that when I use something like sipsak to simulate sip messages to the server, the binding of a user expires rather quickly (a few seconds...). I get this message:
Binding user,'sip:user@mysipdomain.com:32791' has expired.
Does the sip client need to constantly alert the server that he is still connected? And if so, what is the client/server structure of these pings?
thanks, Cory
Yes, the user agent has to refresh its binding periodically, see RFC3261 for more details.
Jan.
On 22-07 08:54, Cory Zue wrote:
Hi,
I'm trying to design a virtual sip client for some research that I am doing, and I am using ser as my sip server. One thing I have noticed is that when I use something like sipsak to simulate sip messages to the server, the binding of a user expires rather quickly (a few seconds...). I get this message:
Binding user,'sip:user@mysipdomain.com:32791' has expired.
Does the sip client need to constantly alert the server that he is still connected? And if so, what is the client/server structure of these pings?
thanks, Cory
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Cory Zue -
Jan Janak