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Chapter 12 iPBX30 User Manual
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• Extension
Assign an extension number for an SIP client to register.
Extension number, the password and user ID are for
authentication requirement when registering to SIP server.
• Caller ID
Assign a caller ID, either in numeric or text characters, which
will be sent to the called party when you are making a call.
• Type
Select the service type for the extension. An extension can be
selected as a standard SIP extension, auto attendant virtual
extension, or ITSP registration account. To work with ITSP
service, an extension must be created for both forwarding
outbound call and accepting inbound call. The user has to do
the other configuration for ITSP operation, such as IP address,
port number assignment, ID and password setting. Refer to
“Dialing plan” section for more details.
• DTMF mode
Select the DTMF mode for this extension to work with the
iPBX30 server. The available selections are: Inband, RFC2833
and info.
Note: We recommend using “info” mode for most
cases.
The SIP client and the server should select the same DTMF
mode to work properly.
We do not recommend using ‘Inband' mode for
iPBX30, although it is supported.
If the SIP client enabled ‘Inband’ mode, it will send out DTMF
tone to server and server has to process the tone and decide
which DTMF code has received. Processing the DTMF tone
needs very complex calculation. This makes iPBX30 CPU very
busy and it will be incapable of processing many channels at
the same time.
• Call Privilege
For different extension users, you may want to control their