Hi all,
I'm quite sure that it does not exist any command on the Cisco gws to enable symmetric SIP signalling (neither with bind control/media command)....if you issue 'show ip sockets', you will see that local tx sip port is a random port != 5060...
Regards,
Verbal ----- Original Message ----- From: "Juha Heinanen" jh@tutpro.com To: "Steve Blair" blairs@isc.upenn.edu Cc: "Miquel" miquelcapde@gmail.com; serusers@lists.iptel.org Sent: Monday, April 11, 2005 3:25 PM Subject: Re: [Serusers] phone + pstn with ser and cisco gateway
Steve Blair writes:
I've never looked into that but by default it does not. I thought I would need "symmtric signaling" in order to define a peer in my Asterisk sip.conf file but that turned out not to be necessary.
i was asking because of nat detection. it turned out that nathelper nat_uac_test("3") does not check port number whereas mediaproxy client_nat_test("3") requires that both ip address and port in via match source ip address and port. so if call comes from cisco gw, ...
i surfed on cisco's web pages, but could not find any command that would make gw's signaling symmetric.
-- juha
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