Setup guide

CODEC used for the audio connection (time) - duration of the phone call
Notes
As some Voicetronix cards fail to detect loop drop correctly, with loop-drop-detection you can
manage whether loop drop detection feature is enabled. The effect of not working loop-drop
detection is call terminated at once when connection is established.
Some tips for testing balance registers:
• test is sensitive to noise from the phone, so it's recommended to cover mouth piece during it;
• find-best-balance can be interrupted by clear-call command;
• once best balance-registers value is known, it can be set manually to this best value for all
voicetronix voice ports, which will use the same telephone line.
LineJack Voice Ports
ip telephony voice-port linejack
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 (FXO "line" port) or busy tone is played
(FXS "phone" port). If the number is correct, then the appropriate number is dialed. If it is an
incomming call from the PSTN line, then 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
ring-cadence (text) - a 16-symbol ring cadence for the phone, each symbol lasts 0.5 seconds, +
means ringing, - means no ringing
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