Chapter 5: Trunk Planning and Ordering Planning and Installation Guide
ShoreTel 11.1 75
If ANI is not being used on wink-start trunks, only the DNIS digits need to be delivered. If
ANI is being used, the star (*) key must be used to delimit the ANI digits from the DID/
DNIS digits—that is:
<DID>
<DNIS>
*<ANI>*<DID/DNIS>*
5.4.6 Outbound Caller ID
ShoreTel sends the user’s DID number as the caller ID number for outbound calls over PRI
or SIP trunks. If the DID number is unavailable, the site Caller Emergency Service ID
(CESID) is used. If that number is unavailable, no caller ID is sent.
Additionally, the outbound caller ID can be configured on a per-user basis such that the
configured value can take precedence over the user's DID number or the site CESID. Note
that this feature is only available on outbound calls using a T1 PRI trunk.
To send a single main number rather than individual user DID numbers, assign
DNIS entries instead of DID numbers to each user. The Site Contact Number will
be sent on outbound calls.
To block all outbound caller ID numbers from being sent, you can configure the
PRI trunk group to always block the caller ID number.
On wink-start and loop-start trunks, the outbound caller ID is defined by the
service provider.
On T1 PRI and loop-start trunks, users can override the Caller ID Blocking
configuration on a call-by-call basis by using commands at the telephone (*67,
*82). Users cannot override the Caller ID Blocking configuration of wink-start and
E1 PRI trunks.
For more information on configuring outbound caller ID, please refer to the ShoreTel
Administration Guide.
5.4.7 Tandem Trunking
Tandem trunking allows legacy voice systems to utilize a ShoreTel system for outbound
dialing. The ShoreTel system supports both user-side and network-side PRI, allowing
ShoreTel systems to flexibly support digital tie trunks to other systems.
You can enable tandem trunking support for any PRI trunk group with a check box in
ShoreWare Director. Tandem calls are associated with a user group for outbound trunk
selection. Inbound calls recognized as tandem calls are redirected to an outbound trunk
based on user group call permissions and trunk group access. When needed, a “dial-in
prefix” can be specified that is prepended to digits collected on tandem calls. The
concatenated set of digits is then used in outbound trunk selection for the tandem call.
5.4.8 Tie Trunks
The addition of network-side PRI support makes PRI tie trunks easier and more compelling
to deploy. ShoreGear switches that support T1 PRI can act as either the user-side or
network-side of a PRI tie trunk. The tie trunk may be used to tie a ShoreTel system to a
legacy voice system, or potentially to another independent ShoreTel system.
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