From a FACTORY RESET or FACTORY NEW box:
SPA-3102 Web Administration:
Regional Tab:
Remove Feature Codes
PSTN Line Tab:
Proxy: YOURASTERISKBOX
User ID: SOMEUSERID
Password: SOMEPASSWORD
Echo Supp Enable: No
Echo Canc Adapt Enable: No
Dial Plan 1: (S0<:DIDNUMBER>)
or IF PASSING CID INFO: Dial Plan 1: (S0<:s>)
Dial Plan 2: (*x.|x.)
Line 1 VoIP Caller DP: 2
VoIP Caller Default DP: 2
PSTN Ring Thru Line 1: No
PSTN CID For VoIP CID: Yes
VoIP Answer Delay: (default 0) 1
PSTN Answer Delay: (default 16) 5
FXO Port Impedence: 220+820||120nf (MAY NEED TO TWEAK FOR ECHO REMOVAL)
SPA To PSTN Gain: (default 0) 5 (MAY NEED TO TWEAK FOR ECHO REMOVAL)
PSTN To SPA Gain: (default 0) 5 (MAY NEED TO TWEAK FOR ECHO REMOVAL)
FreePBX Trunk Setup:
Trunk Name: spapstn
Peer Details:
dtmfmode=rfc2833
secret=SOMEPASSWORD
type=peer
username=SOMEUSERNAME
USER Context: from-spapstn
User Details:
context=from-trunk
host=dynamic
dtmfmode=rfc2833
secret=SOMEPASSWORD
type=user
username=SOMEUSERNAME