I would like you to ask for help with setting SPA8000.
I have bought SPA8000 witch firmaware 6.1.3.
Between SPA800 and PBU (PhoNET) is SIP TRUNK (I use TRUNK GROUPS T1).
How to set L1 to L8 to have similar features as inner extension ?
For example to be able to call from L1 to L2 (Lx to Ly).