Specifications

Session Initiated Protocol
Planning and Installation Guide F – 9
Step 9
Select the Teleworker check box if the SIP endpoint is not at the same
site as the trunk group being configured.
Step 10 Select the Enable SIP Info for G.711 DTMF Signaling check box to
have SIP information sent between the SIP device and voice mail.
Enable this if connecting two ShoreTel systems with SIP tie trunks.
Clear if the trunk is primarily used to connect a third-party SIP device.
Step 11 Select the Enable Digest Authentication check box and enter a user ID
and password for enhanced security. All third-party SIP devices will be
required to have matching information in the associated fields, and the
user ID and password of the device will be authenticated against the
information stored in the ShoreTel system. (optional)
NOTE If checked, any third-party SIP devices that you would like to have access
the ShoreTel system must be configured with the same user ID and
password information that you have entered here.
Step 12 Enter the desired number in the Number of Digits from CO field.
Step 13 Select the DNIS check box and click the Edit DNIS Map button to add
entries to the DNIS Map.
Step 14 Select the DID check box and click the Edit DID Range button to add
entries to the DID Digit Map.
Step 15 Select the Extension check box to route calls directly to the extension
based on the number of digits received from the SIP device, and select
the appropriate radio button.
• Translation Table - Select this option to use a digit translation table
to ensure that inbound calls are the proper length.
• Prepend Dial in Prefix - Select this to prepend inbound calls with a
number that you can specify in the field.
• Use Site Extension Prefix - Select this to use the extension prefix
associated with the site.
Step 16 Select the Tandem Trunking check box allow a legacy voice system to
use a ShoreTel system for outbound dialing.
• User Group - Tandem calls are associated with a user group for out-
bound trunk selection. In-bound calls that are recognized as tan-
dem calls are then redirected to an outbound trunk based on the
call permissions and trunk group access associated with the user
group set in Director.
• Dial in Prefix - When needed, you can specify a "dial in prefix"
which is prepended to digits collected on tandem calls. The concat-
enated set of digits is then be used in outbound trunk selection for
the tandem call.
Step 17 Click Save to store your changes.