Table 111 Standards Supported - ZyXEL Communications MAX-206M1R series User Manual

Chapter 21 Product Specifications
Table 110 Firmware Specifications (continued)
FEATURE
SIP ALG
Dynamic Jitter Buffer
Voice Activity Detection/
Silence Suppression
Comfort Noise Generation Your device generates background noise to fill moments of
Echo Cancellation
Time and Date
Logging
Codecs
Fax Support
Ring Tones
Call Prioritization

Table 111 Standards Supported

STANDARD
RFC 768
RFC 791
RFC 792
RFC 792
RFC 826
RFC 854
RFC 1349
RFC 1706
RFC 1889
RFC 1890
RFC 2030
246
DESCRIPTION
Your device is a SIP Application Layer Gateway (ALG). It
allows VoIP calls to pass through NAT for devices behind it
(such as a SIP-based VoIP software application on a
computer).
The built-in adaptive buffer helps to smooth out the
variations in delay (jitter) for voice traffic (up to 60 ms). This
helps ensure good voice quality for your conversations.
Voice Activity Detection (VAD) reduces the bandwidth that a
call uses by not transmitting when you are not speaking.
silence when the other device in a call stops transmitting
because the other party is not speaking (as total silence
could easily be mistaken for a lost connection).
You device supports G.168 of at least 24 ms.
This an ITU-T standard for eliminating the echo caused by the
sound of your voice reverberating in the telephone receiver
while you talk.
Get the current time and date from an external server when
you turn on your WiMAX Modem. You can also set the time
manually.
Use the WiMAX Modem's logging feature to view connection
history, surveillance logs, and error messages.
Enhanced Variable Rate Codec (EVRC), G.711 (PCM
and -law), G.729a, and G.723.1
a
T.38 FAX relay (FAX over UDP).
G.711 fax relay for fax calls and be able to renegotiate codec
to G.711 if a fax call is detected.
Supports different distinctive ring tones on each line.
Prioritize VoIP traffic originating from the RJ-11 ports over
any other traffic.
DESCRIPTION
User Datagram Protocol
Internet Protocol v4
Internet Control Message Protocol
Transmission Control Protocol
Address Resolution Protocol
Telnet Protocol
Type of Service Protocol
DNS NSAP Resource Records
Real-time Transport Protocol (RTP)
Real-time Transport Control Protocol (RTCP)
Simple Network Time Protocol
-law
µ
User's Guide