OldAndKnackered
Programmer
I have been installing SIP on a customer's site, and although it is already up and running on another of their sites, which are all within their own cloud, and have a single connection to the outside world, the SIP on the new site keeps dropping out. The I.T./firewall people have been asked to replicate what they did at the original site for the new one, but it still keeps going down. Are the only ports needed 5060 and the RTP/RTCP port range, or is there another like ICMP, which if blocked, could cause issues?. I have dropped the binding refresh time to 30s, and on Friday, when left for over an hour with no calls in or out, things still worked first time, but this happened the week before and things stopped. I know it must be a firewall thing, as I use a similar setup whenever I do SIP, and have never had this issue before, but they must be blocking something.
Any help appreciated.
Any help appreciated.