Setup guide

• on-hook - the handset is on-hook, no activity
• off-hook - the handset is off-hook, the number is being dialed
• ring - call in progress, direction of the call is shown by the direction property
• connection - the connection has been established
• busy - the connection has been terminated, the handset is still off-hook
(phone | line) - the active port of the card
• phone - telephone connected to the card (POTS FXS port)
• line - line connected to the card (PSTN FXO port)
(ip-to-port | port-to-ip) - direction of the call
• ip-to-port - call from the IP network to the voice card
• port-to-ip - call from the voice card to an IP address
(plugged | unplugged) - state of the PSTN line
• plugged - the telephone line is connected to the PSTN port of the card
• unplugged - there is no working line connected to the PSTN port of the card
(integer) - the phone number being dialed (text) - name and IP address of the remote party (name) -
CODEC used for the audio connection (time) - duration of the phone call
Zaptel Voice Ports
ip telephony voice-port zaptel
Property Description
name (name) - name given by the user or the default one
autodial (integer; default: "") - phone number which will be dialed immediately after the handset
has been lifted. If this number is incomplete, then the remaining part has to be dialed on the
dial-pad. If the number is incorrect, the line is hung up. If the number is correct, then the
appropriate number is dialed (the direct-call mode is used - the line is picked up only after the
remote party answers the call)
playback-volume (integer: -48..48; default: 0) - playback volume in dB
• 0 - 0dB meand no change to signal level
record-volume (integer: -48..48; default: 0) - record volume in dB
• 0 - 0dB meand no change to signal level
region (name; default: us) - regional setting for the voice port. This setting is used for setting the
parameters of PSTN line, as well as for detecting and generating the tones
aec (yes | no) - wheteher echo detection and cancellation is enabled
aec-tail-length (short | medium | long; default: short) - size of the buffer of echo detection
aec-nlp-threshold (off | low | medium | high; default: low) - level of cancellation of silent sounds
aec-attenuation-scaling (integer: 0..10; default: 4) - factor of additional echo attenuation
aec-attenuation-boost (integer: 0..90; default: 0) - level of additional echo attenuation
software-aec (yes | no) - software echo canceller (experimental, for most of the cards)
agc-on-playback (yes | no; default: no) - automatic gain control on playback (can not be used
together with hardware voice codecs)
agc-on-record (yes | no; default: no) - automatic gain control on record (can not be used together
with hardware voice codecs)
detect-cpt (yes | no; default: no) - automatically detect call progress tones