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Chapter 13 Authority Group
Table 53 Batch Add SIP Extensions (continued)
LABEL
DTMF Mode
Codec Setting
Codec Pool
Codec List
Apply
Cancel
202
DESCRIPTION
Control how the X2002 handles the tones that the IP phones using
these extensions make when they push their buttons. One use of the
tones is to distinguish between numbers when trying to dial a PSTN
phone number. You should use the same mode as your VoIP service
provider. The choices are:
•
rfc2833 - Follow the RFC 2833 standard and send the DTMF tones
in RTP packets.
•
inband - Send the DTMF tones in the voice data stream. This works
best when you are using a codec that does not use compression (like
G.711). Codecs that use compression (like G.729) can distort the
tones.
•
info - Send the DTMF tones in SIP messages.
Select the type of voice coder/decoder (codec) that you want this
extension to use when communicating with the X2002. The following
codecs are supported by the X2002:
• G.711 a-law (typically used in Europe)
• G.711 u-law (typically used in North America and Japan)
• G.729A
• G.722 (pass-through)
• G.722 AMR-WB (pass-through)
• G.723.1 - you must activate support for this codec in the
Configuration > PBX > Server Configuration > Server screen.
• G.726
See
Voice Codecs on page 223
When two SIP devices start a SIP session, they must agree on a codec.
If these SIP extensions are assigned to videophones, you must specify
the video codecs used for video calls. The X2002 allows the following
video codecs to passthrough:
• H.261
• H.263
• H.264
• MP4
See
Video Codecs on page 224
This column indicates the codec types not used for these extensions.
You can add a codec type to be used for these extensions by
highlighting it and clicking the Right button.
This column indicates the codec types used by these extensions. You
can organize the priority of the codecs by highlighting it and clicking the
Up or Down buttons to move the codec higher or lower in priority. The
SIP extensions attempt to use the higher priority codecs first and try
the lower priority codecs next. You can remove a codec type from being
used from these extension by highlighting it and hitting the Left button.
Click Apply to save your changes.
Click Cancel to go back to Authority Group configuration page
without saving your changes.
for more information.
for more information.
X2002 User's Guide
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