Grandstream Device Configuration
Status Basic Settings Advanced Settings FXO Lines FXO Line Test Channels Dial-plan Profile 1 Profile 2 Profile 3

  Phone Number Settings
Channel(s) SIP User ID Authenticate ID Authen Password Profile ID
1.
2.
3.
4.

  Call Progress Tones
      [Syntax: ch x-y: f1=val@vol,f2=val@vol,c=on1/off1-on2/off2-on3/off3; ... ]
       Note : f1,f2-frequency(Hz); vol-volume(dB); c-cadence(10ms, 0-continuous)
1. Dial Tone:
2. Ringback Tone:
3. Busy Tone:
4. Reorder Tone:

  Channel Voice Setting
1. Tx to PSTN Audio Gain(dB): (-12-12, default 1)
2. Rx from PSTN Audio Gain(dB): (-12-12, default 0)
3. Silence Suppression(Y/N): (default Yes)
4. Echo Cancellation(Y/N): (default Yes)

  Channel Specific Setting
1. DTMF Methods(1-7): (default 1)
(1:in-audio, 2:RFC2833, 3:1+2, 4:SIP Info, 5:1+4, 6:2+4, 7:1+2+4)
2. No Key Entry Timeout(X1s): (1-9, default 4)
3. Local SIP Listen Port: (default ch1-4:5060++;)
4. SRTP Mode(1-3): (default 1)
(1:disabled, 2:enabled but not forced, 3:enabled and forced)

  Port Scheduling Schema (Voip->PSTN)
1. Round-robin and/or Flexible: (default rr:1-4;)
(Syntax: rr: port_group; [...])
(Default: rr:1-4; round-robin of all ports )
2. Prefix to Specify Port(1 stage dialing method): (default 99)
(Syntax: prefix# + ch# + dialing# will request the ch# per call)
(Note that this code has to prefix dialplan number and prefix doesn't impact round-robin)
     
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