Hi,
For service level agreements/ response times etc, it's best to have the services which are critical on a business account but residential is less expensive.
The first thing I would check is whether your numbers are compatible with the new property as if it's on a different exchange you won't be able to move them and would need to set up a redirect or move them to a different service, such as VoIP (on a BT Business Broadband). I would also look into whether BT Infinity is available.
If everything at the new property is going to be on a business account you can have them all on a BT Onebill but you can't include residential services in this.
I would recommend Featureline Compact for your business as it offers a lot more functionality than a standard line and whilst it costs more in rental, you can have it installed for free if you agree to a free BT call plan (which will give you 500 UK and international landline minutes at no cost) and a five year contract.
Hope this helps.
