Jiri Kuthan wrote:
At 11:14 AM 1/14/2003, Maxim Sobolev wrote:
Jiri Kuthan wrote:
Isn't the ATA able of "double registration" (see draft-ietf-sipping-nat-scenarios-00.txt) ? I thought it was able to register, look at received and rport and re-register then again with the host/port it learned from reply to the first registration.
Or does it do so only for IP address (received) and not for port numbers (rport)?
Unfortunately it doesn't do it yet neither for received nor for rport.
I think at least "received" is processed. Though not well documented, Cisco claims to have it and I heard rumours about people using it.
See http://www.cisco.com/univercd/cc/td/doc/product/voice/ata/atarn/186rn214.htm... the paragraph "Receiver-tagged VIA header".
Thank you for the pointer, but it seems that 2.15 version doesn't do it, at least it certainly don't try to cancel INVITE or re-register when receiving reply with `received' set. :( Perhaps for some reason the feature was removed.
But it doesn't really matter, because as long as ata (or any other UA that sends/receives from the same UDP port) is concerned, my nathelper module provides the same functionality.
-Maxim