BT Cloud Voice with Zen Broadband?

Our community shop had signed a five year deal with BT for Cloud Voice before asking my help, so we are locked in to that. But we aren't tied to BT for Broadband, and I was thinking of moving to Zen.

I have had a mixed experience with running other VOIP services. The VOIP phone that I have running on Sipgate VOIP seems very happy behind anybody's router without special settings, but I had a torrid time at home with trying to configure my own router for A&A's VOIP offering (now resolved by moving to an A&A pre-configured router),

I am wondering whether I am setting myself up for grief if I try to set up BT Cloud Voice on someone else's Broadband. What experience have others had - how fussy is BT Cloud Voice?

Is it the Business CV?

It should be fine ... the base is programmed with your credentials. Take the base and handset to another location, non-BT, and try it out.

Only thing to be aware of would be using a router that either doesn't have a SIP ALG, or one that lets you disable it. Also don't move to a broadband supplier that also provisions Digital Voice even if you don't plan on using it, I had a Cisco ATA191 with A&A VoIP behind a BT Smart Hub 2 with a Digital Voice service on and registration was intermittent and RTP packets never got through.