AT&T SB67070 SIP, Руководство по настройке

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3.3 Call Flow
Inbound Call Flow:
1. A PSTN phone originates a call to an AT&T IP Flexible Reach service number.
2. The PSTN routes the call to the AT&T IP Flexible Reach service network.
3. The AT&T IP Flexible Reach service routes the call to Synapse System at Customer Site.
4. Synapse System applies any necessary digit manipulations based upon the DID and
routes the call to a hunt group, phone or a fax endpoint.
Outbound Call Flow:
1. Synapse System phone or fax endpoint originates a call for delivery to AT&T IP Flexible
Reach service network.
2. Synapse System applies any necessary origination treatment (verifying permissions,
determining the proper route, selecting the outgoing trunk, etc.) and routes the call to
AT&T IP Flexible Reach service network.
3. The AT&T IP Flexible Reach service network delivers the call to PSTN.
4. PSTN delivers the call to a phone or fax endpoint.
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