Our company has skype connect with a online number.
I’ve configured the SIP trunk, firewall and inbound route.
It works most of the time but sometimes inbound does not work.
We get a "The number you dialed is not in service…"
So I assume that my PBX looses it’s registration when this happens.
Skype uses sip.skype.com for the sip host and that
can be one of two IP address. 22.214.171.124 and 126.96.36.199
I found that usually when the IP of sip.skype.com changes our
incoming stops working but not always. Sometimes it just stops working for no reason.
What I’ve tried so far:
- set host to dynamic and ‘allow anonymous’
- IP Authentication with a SIP trunk for each IP address.
- changed maxexpiry to 120
It usually shows that it is registered when and I don’t think
that it is my internet connection latency is usually 190-240ms
I did a tcpdump of the ethernet connection and did not see a incoming sip connection from any sip trunk. Just nothing when I call it.
Here is my Trunk settings:
Any help will be appreciated.