You must map SBS Extensions to a complete number, that is, area/city/SBS extension, at each SBS Terminating Node. This complete number is then sent to the SBS Originating Node where ARS establishes the bearer call.
When a SBS call is received, and routes to a local endpoint or non-SBS trunk, an SBS extension is allocated for use during call setup. For example, if the extension was 694102, call processing would index the public-unknown-numbering table for the best match to the extension using the Ext Code column.
For example if the best match to the extension is the 6 digit entry for Extension Code 69 and CPN Prefix entry 3034. Call processing takes the associated CPN prefix entry (3034) and pre-pends it to the extension to make a Complete Number, 3034694102. Call processing then pre-pends the local country code to the number, for example, 13034694102.
This complete number is sent to the SBS Originating Node on the SBS trunk that is originating the call.
Note:
The Complete Number that is sent to the SBS Originating Node must be DID/DDI accessible at the SBS Terminating Node. The SBS Originating Node uses its international access code to dial the Complete Number if the local country code provided differs from the local country code of the SBS Originating Node.
