Call Processing In Sls Mode - Avaya G250 Administration

Configuring Standard Local Survivability (SLS) on the G250

Call processing in SLS mode

In survivable mode, SLS provides only a limited subset of Avaya Communication Manager call
processing functionality:
Limited call routing through a Survivable ARS Analysis Table (in PIM or through the CLI)
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and COR calling permissions
Single call appearances only on the digital IP phones
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Analog loop-start trunk support, analog stations, and IP stations only (not BRI)
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Inbound calls are directed to a pool of available stations that must be administered in the
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Avaya Communication Manager. The search algorithm is circular so that the incoming
calls are fairly distributed.
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Important:
SLS permits 911 calls, but the specific location information is not transmitted to
Important:
the Public Service Answering Point (PSAP) but only the general trunk-identifying
information. Emergency personnel will have a general location associated with
the trunk (for example, a building address), but nothing more specific like the
room or office number. Also, If a 911 call disconnects for any reason, emergency
personnel cannot reliably call the originator back.
Acts as H.323 Gatekeeper, allowing up to 10 IP endpoints to register simultaneously
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Call Detail Recording (CDR, see
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Trunk Access Code (TAC) dialing
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Centrex features
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Note:
SLS cannot add or delete digits for outbound calls to the analog loop-start (CO)
Note:
trunk. This means that Centrex users, for example, must manually dial the extra
digit(s) before they can call out to the PSTN. If the CO access code is "9," then a
Centrex customer would have to dial "9-555-1212" for local directory service. If
this Centrex access code is not dialed correctly, the local outbound PSTN call will
not complete successfully.
SLS does not support the following functionality:
Features such as Hold, Conference, and Transfer
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Central Office-based Caller ID or Call Waiting
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Custom calling features such as call waiting from the Bell Operating Company (BOC) or
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Local Exchange Carrier (LEC)
Music-on-hold or announcement playback
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Call Center features, including ASAI
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Avaya Communication Manager Feature Access Codes (FACs), except ARS
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78 Administration for the Avaya G250 and Avaya G350 Media Gateways
SLS logging activities on page 82)