I have been experiencing dropped calls when making calls through Vonage (connected to Line port - SP1 and 2 are GV numbers and are not used for that purpose.)
Using a phone connected to the "phone port" and calling through Vonage on the Line port, I may be able to speak for several minutes, and out of the blue, the call is dropped. Redialing is not smooth (...), and the calls will go out again.
Finally, I should add that all "native" calls through Vonage (w/o obihai box) are fine.
As if Vonage and the Obihai did not like each other so much when working together for too long...
Any suggestions?