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Chapter 14 Authority Group
X6004 User’s Guide
132
Start Number Type the first extension number for this range of extensions. Extensions can be
from 1 to 20 digits long.
Step/Interval
Type the value of the increment, which the X6004 uses to create this range of
extensions.
Amount
Type the number of extensions you want to create. The number of extensions you
can create is limited by the subscription service registered on the X6004 (see
Section 26.6 on page 233.
SIP Auth.
Password
When you create multiple SIP extensions, you automatically create SIP accounts
on the X6004. The user names for these SIP accounts are the extension numbers.
The passwords for the SIP accounts are also the extension numbers. To make the
passwords more secure you can add a prefix or a postfix to these extensions.
For example type “1” in the Prefix field and the SIP account passwords for the SIP
extensions you create become “1 + extension number”.
You can enter up to three letters, numbers or a combination of letters and
numbers in the Prefix and Postfix fields.
DTMF Mode
Control how the X6004 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.
Codec Setting
Select the type of voice coder/decoder (codec) that you want this extension to use
when communicating with the X6004. See Section 14.1.1 on page 126 for more
information on voice codecs. The following codecs are supported by the X6004:
•G.711A (typically used in Europe)
• G.711µ (typically used in North America and Japan)
• G.729A
•G.722
• G.722.2
• G.723.1 - you must activate support for this codec in the Configuration > PBX
> Server Configuration > SIP Server screen.
•G.726
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 X6004 allows the following video codecs to
passthrough:
•H.261
• H.263
• H.264
•MP4
See Section 14.1.2 on page 127 for more information on video codecs.
Codec Pool
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.
Codec List 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.
Table 40 Add Multiple SIP Extensions
LABEL DESCRIPTION