Hello!
I've been using 4 trunks to Russian provider voip.mtt.ru [or 80.75.132.66] more than half a year. Since last week something happens with registration.
As soon as account changes submitted (in PBXes), trunk works first 3 minutes (I assume default timeout 180 sec) and doesn't register anymore (or tries but fails).
According to Status page (PBXes) trunck registered, but in fact doesn't work.
If I connect FritzBox, Gigaset IP phone - everything works just perfect.
What could be a problem?
My we change TTL to check? Unfortunatelly no params available in web-interface.
