I have a similar problem with Beocom 1. I connected a Vonage line to Line 1 and an analog PSTN line to Line 2. I don't get Caller ID on either line except for one call in the last 10 days.
I bought these phones (3 Beocom 1 and 1 Beocom Base) in December 2008 in the US. I am currently living in India, but the fact that neither the Vonage (US) line nor the local line work with Called ID is a bad thing.
Does anyone have a solution to this ? Customer service in the US did not have a clue and the Bangalore B&O store did not either.
Sanjay