User Manual

Voice SIP Advanced Configuration
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3 Click the VoIP Advanced tab. The Voice ---- SIP screen opens.
4 In the Forwarding Line number field, enter the number to which you want to
forward calls. Configure how calls are forwarded to this line using the following
options:
a Check the Call forwarding when busy check box if you want to forward this
line to another number when this line is busy.
b Check the Forwarding all calls check box if you want to forward all calls to
this line.
c Check the Call forwarding if no answer check box if you want to forward this
line if the caller receives no answer.
d Check the Call waiting check box if you want to enable call waiting for this
line.
5 Repeat step 4 for a second phone line for which you wish to forward incoming
calls.
6 Check the Enable MWI subscription check box if you want to enable message
waiting indicator.
7 Check the Enable T38 support check box if you want to enable T38 fax support.
8 In the Registration Expire Timeout field, enter the registration expiration time of
the SIP client.
9 In the Dial-Plan Setting field, enter the dial plan for the line. For example, enter
how many digits the user must enter before the call attempt is made.
10 In the Dtmf Relay setting field, select one of the following settings:
 Sip Info
 RFC2833
 Voice Band
3-6-2009 Draft