trectechs

I am using a vonage softphone with the axon and Express talk. It does work but for only 66 secs after connection to inbound call or outbound call than it dissconnects. Every time at a minute and 6 secs. I have email tech support on both sides with no help as of yet. Does anyone no if you can hook up a analog adapter from a vonage phone line to the Axon system?