The phones usually won't be getting their inbound traffic on 5060. They might, but not usually.
If the SIP registrar sits out on the internet, the phones will communicate to that on port 5060 but the return traffic will come back on a random high port. Just bog standard PAT behavious. Brendan Ord Voice Engineer 0434 364 432 07 3467 9070 rivernet.net.au Rivernet Communications Pty Ltd Suite GE2, Lower East Wing, BTP Conference Centre 1 Clunies Ross Court, Eight Mile Plains. QLD 4113 -----Original Message----- From: AusNOG <ausnog-boun...@lists.ausnog.net> On Behalf Of Patrick Cole Sent: Friday, 1 March 2019 1:20 PM To: Greg McLennan <mclen...@internode.on.net> Cc: aus...@ausnog.net <ausnog@lists.ausnog.net>; Narelle Clark <narel...@gmail.com> Subject: Re: [AusNOG] Fixed wireless fun and games with SIP I think Greg might be on to something there - If the handsets by chance are doing something like UPNP to request forward of 5060 through from the router, only one might be getting the inbound calls due to that as they would be competing for the port forward. PC Fri, Mar 01, 2019 at 02:14:56PM +1100, Greg McLennan wrote: > If your sharing(sip?) are you both registering on ports 5060, or > reconfigured one user to 5061?. Does the front end router have a sip > helper option? > > Cheers Greg > > On 1/03/2019 1:14 pm, Narelle Clark wrote: > > Hi all > Wondering if anyone has seen this before: customer has home office, SIP > phone on dsl and all works fine. > Relocates to another home connected via NBN fixed wireless and shares > with another user but wrong handset rings and can't take inbound calls. > No apparent issues with video downloads. Makes outbound calls fine. > Looks like NAT getting its ports crossed? > Ideas anyone? > CheersĀ > Narelle > > _______________________________________________ > AusNOG mailing list > AusNOG@lists.ausnog.net > http://lists.ausnog.net/mailman/listinfo/ausnog > _______________________________________________ > AusNOG mailing list > AusNOG@lists.ausnog.net > http://lists.ausnog.net/mailman/listinfo/ausnog -- Patrick Cole <patri...@spirit.com.au> Senior Network Engineer Spirit Telecom Ltd 19-25 Raglan St, South Melbourne VIC 3205 Desk: 0385541391 Mobile: 0410626630 _______________________________________________ AusNOG mailing list AusNOG@lists.ausnog.net http://lists.ausnog.net/mailman/listinfo/ausnog _______________________________________________ AusNOG mailing list AusNOG@lists.ausnog.net http://lists.ausnog.net/mailman/listinfo/ausnog