Configuration Chapter F: Session Initiation Protocol
298
Audio proxies via the SG vs. the RTP are directed to ShoreWare Director or
DVS.
RTP audio packets are sent in 20 ms audio samplings instead of 10 ms.
The inter-site call codec is used.
Step 10Select 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 11Select 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)
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 12Enter the desired number in the Number of Digits from CO field.
Step 13Select the DNIS check box and click the Edit DNIS Map button to add entries
to the DNIS Map.
Step 14Select the DID check box and click the Edit DID Range button to add entries to
the DID Digit Map.
Step 15Select 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 16Select 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 outbound
trunk selection. In-bound calls that are recognized as tandem 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 concatenated set of
digits is then be used in outbound trunk selection for the tandem call.
Step 17Click Save to store your changes.
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