Dear All:
I have one question to discuss, for example,
in practical network implementation, it is hard to
identify the role of UA and Proxy, for example,
when a SIP protocol stack receives a request message,
if this message is decided by upper layer that it
is used for interworking with PSTN, then the role
of this protocol stack is UA, otherwise, if this
mesage is to be forwarded , then this protocol stack's
role is Proxy.
According to the current RFC2543bis02, for example,
when stateful Proxy receives a BYE request, even if it knows
that this BYE request is invalid, it can not send final response,
then this will cause a problem, how can the implementator to
judge the role of protocol of protocol stack to be a UA or proxy?
Then if it is configured as UA, but this time, the role is proxy?
What should we do?
In implementation, SIP network has to work together with other
network, such as PSTN.
Could any one give me some suggestion and ideas? any suggestions
and ideas are welcome!
Best Regards!
Yours: Ford
Title: Discuss on the implementation for UA and Proxy Server!!
