Linksys SPA9000-NA Installation And Configuration Manual page 67

Using Direct Inward Dialing to Phone Extensions
Direct Inward Dialing allows the external users to dial directly any phone extension in the LVS system,
without passing through the Auto Attendant or the receptionist .
Before proceeding with the configuration you need to have the full correspondence between the
external (DID) number and the extension number .
NOTE:
Direct Inward Dialing requires network support for SIP trunking DID .
–
It is important that the DID number format match exactly the format of the number signaled
–
in the SIP trunk .
Please check with your Service Provider to confirm the availability of this feature and the
–
correct DID number format, before proceeding with this configuration .
SYNTAX: <DIDn1>:+<Extn1>|<DIDn2>:+<Extn2>|<DIDn3>:+<Extn3>|<DIDn4>:+<Ext
n4>|<DIDn5>:+<Extn5>|<DIDn6>:+<Extn6>|<DIDn7>:+<Extn7>|<DIDn8>:+<Extn8
>|<DIDn9>:+<Extn9>|<DIDn10>:+<Extn10>|<DIDn11>:+<Extn11>|<DIDn12>:+<Ex
tn12>|<DIDn13>:+<Extn13>|<DIDn14>:+<Extn14>|<DIDn15>:+<Extn15>|<DIDn16
>:+<Extn16>|<default_route>
Enter a plus (+) or a minus (-) before the extension number to achieve the desired results for caller
•
ID and call routing:
The extension will be alerted when there is an incoming call to the DID number,
–
+<Extn1>
and the DID number will be used as the local user-ID in outbound SIP requests, along with the
display-name of the extension .
The extension will not be alerted when there is an incoming call to the DID
–
-<Extn1>
number . However, the DID number will be used as the local user-ID in outbound SIP requests,
along with the display-name of the extension .
DIDn#:
DID number, matching the format of the number signaled in the SIP trunk
•
Extn#:
Target extension number or aa for Auto Attendant
•
Default route:
The default route (extension, hunt group or Auto Attendant) to be used in case
•
the incoming target number does not match any of the DID numbers in the contact list with the
format described in the sections above .
Call forward:
Optionally, add call forward information to the Contact List to specify how
•
unanswered calls are handled .
NOTE:
It is useful to add call forward information to ensure that calls are answered when the
designated phone is unstaffed, as may be the case during lunch time or after hours . If the call is
not answered within a specified time, it is routed to another phone or to the Auto Attendant .
SYNTAX: <DIDn1>:+<Extn1>,cfwd=<target>|<DIDn2>:+<Extn2>,cfwd=<target>
|<DIDn3>:+<Extn3>,cfwd=<target>
EXAMPLE: 4085555550:aa|4085555551:+101,cfwd=aa|4085555552:+102|408555
5553:+103|4085555554:+104|4085555650:+500
Linksys Voice System Installation and Configuration Guide
Configuring Phone Service and Voice Mail
Configuring Inbound Call Routing
66