The SIP helper in Mikrotik routers can be an issue as well. We had to turn it off for his VoIP video phone to work.
On Tue, Apr 14, 2015 at 3:36 PM, George Skorup (Cyber Broadcasting) < [email protected]> wrote: > I updated a sector and a couple SMs yesterday to 2.4.1. Then this morning > one of the customers says their VoIP is completely broken, couldn't get > calls in or out. Their phones all talk to a hosted PBX on our side. My VoIP > guy was investigating and found that the new SIP NAT Helper in the SM was > the problem. He shut it off and it fixed everything. > > So why the hell is a SIP *NAT* helper doing anything when the SM is in > *BRIDGE* mode? Splain me that, Cambium. >
