User's Manual

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GXW42xx User Manual
Version 1.0.5.43
DTMF-RELAY Tag Respect SIP
INFO
Default is No. If set to No, the DTMF-relay tag in Accept Header is
always added in outbound INVITE. If set to Yes, it depends on if SIP
INFO is chosen in Preferred DTMF Method.
Disable DTMF Negotiation
Default is No. If set to yes, use above DTMF order without negotiation
Enable Fast RFC2833
Default is No. DTMF will use 240 ms timing. If set to yes, DTMF will 100
ms instead.
DTMF Payload Type
Sets the payload type for DTMF using RFC2833.
Preferred Vocoder
The GXW42XX supports up to 5 different Vocoder types including G.711
A-/U-law, G.726 (Supports bit rates 16, 24, 32 and 40), G.723.1,
G.729A/B, iLBC. The user can configure Vocoders in a preference list
that will be included with the same preference order in SDP message.
The first Vocoder is entered by choosing the appropriate option in
“Choice 1”. The last Vocoder is entered by choosing the appropriate
option in “Choice 8”.
Voice Frames per TX
Number of the frame size when it transmits. Default is 2, from 1 -4 for
G711/G726/G729
G723 Rate
Defines the encoding rate for G.723 vocoder. By default, 6.3kbps rate
is chosen.
G726-32 Packing Mode
Choose the packing mode for G726-32
iLBC Frame Size
Sets the iLBC frame size in 20ms or 30ms
iLBC Payload type
Default value is 97. Defines payload type for iLBC. The valid range is
between 96 and 127.
AAL2-G726-16 Payload type
Default value is100. Range is from 96 to 127.
AAL2-G726-24 Payload type
Default value is 99. Range is from 96 to 127.
AAL2-G726-32 Payload type
Default value is 104. Range is from 96 to 127.
AAL2-G726-40 Payload type
Default value is 103. Range is from 96 to 127.
Use First Matching Vocoder in
200OK SDP
Default is No. If set to “Yes”, device will include only the first match
vocoder in its 200OK response, otherwise it will include all match
vocoders in same order received in INVITE.