I currently have a Panasonic TAW848 installed with one intercom/doorbell used at the front door. The intercom/doorbell is a Channel Vision high quality door intercom, in a recessed box. There is a 2 wire connection to the intercom ports on the TAW848.

When reviewing the spec's for the DSX 40 I see they support a "door box", but I've only seen mention of their one model which is a rather ugly surface mount. Does anyone know if there are alternatives door boxes out there and/or can you use other analog 2 wire devices so I could keep the door intercom I already have?