MikroTik RouterOS v2.9 Reference Manual page 676

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 generating
the dial 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
Command Description
clear-call - terminate a current call established with the specified voice port ( name ) - port name to
clear call with
show-stats - show voice port statistics ( name ) - port name show statistics of ( time ) - maximal
time of packet round trip ( integer ) - number of packets sent by this card (these packets are
digitalized input of the voice port) ( integer ) - number of bytes sent by this card (these packets are
digitalized input of the voice port) ( text ) - minimal/average/maximal intervals between packets
sent ( integer ) - number of packets received by this card (these packets form analog output of the
voice port) ( integer ) - number of bytes received by this card (these packets form analog output of
the voice port) ( text ) - minimal/average/maximal intervals between packets received ( time ) -
approximate delay time from the moment of receiving an audio packet from the IP network till it is
played back over the telephony voice port. The value shown is never less than 30ms, although the
actual delay time could be less. If the shown value is >40ms, then it is close (+/-1ms) to the actual
delay time.
monitor - monitor status of the voice port ( name ) - port name to monitor ( on-hook | off-hook |
ring | connection | busy ) - current state of the port:
• 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
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