2 Door entry front door panels needed. One at main gate & one by front door.
Add the GSM connection at high level for aerial + Add to 3rd line on system.
Q. Can 2 or 3 outlets be added to 1 extension.
Q.Need a call diverter box for in the house from one line to another to allow door entry to mobile phone.
Orchid 308+: 3 Line 8-ext £150.00
Orchid DX800 Office Phone £30-00
Door entry via phone system £200.00
GSM Mobile to phone system £130.00
X10 Control via phone (all256 address) £155.00