VoIP Router User's Manual

VoIP ROUTER ADSL
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Configure Caller ID info:
Modulation: This is Caller ID Modulation (Bell 202.V23). You can select between CID_BELL202
and CID_V23.
Delay: Delay , in milliseconds , between the end of the first ring and beginning of the CID
transmission.
FSK AMP 0: FSK (Frequency-Shift Keying) is a method of transmitting digital signals. Logic 0
(low) frequency & logic 1(high) frequency are in an analog form. The VoIP device will convert
them to FSK for transmission purpose. Here you can set-up amplitude of logic 0 frequency.
FSK AMP1: Amplitude of logic 1(high) frequency
Configure VAD: VAD (Voice Activity Detection) is a function to detect voice activity during one
conversation. It is to efficiently utilize the bandwidth by not transmitting “empty” voice packets
when both sides remain silent. In the meantime, a comfort noise could be generated (occupied little
bandwidth).
Disable VAD: No VAD function
Enable VAD with Comfort Noise: a comfort noise will be generated (CNG)
Enable VAD with Standard SID: VAD will be done with standard SID (Security Identifier).
Enable VAD and Suppress SID: When silence is detected, the VoIP device will not send any
packets to the network and the transmission of packets will be paused until voice is detected again
Configure Echo Cancellation: Four options are available including disable echo cancellation,
enable echo cancellation, enable echo cancellation with NLP, enable echo cancellation with
CNG_NLP.
Start Attenuation: Setting the Start Attenuation timer.
Max Attenuation: Setting the Max Attenuation timer.