Graandstream

Grandstream Configuration FXO Lines tab: FXO Termination

   Enable Call Answer Supervision(Y/N): ch1-8:Y; 

Channel Dialing to VoIP

User ID: ch1-8:<PCC IP ADDRESS>;

Sip Server: ch1-8:p1; PSTN to VOIP Caller ID Setting

   Number of Rings Before Pickup: ch1-8:1; 

Channels tab: Channel Specific Setting

   DTMF Methods(1-7): 2 

Profile tab:

Activate Profile: yes

Profile Name: pars

SIP Server: <PCC IP ADDRESS>

Outbound Proxy: <PCC IP ADDRESS>