Buch1 > Functions, Uses, Concepts > External Outgoing Call
External Outgoing Call
An outgoing external call is made as follows:
•A user dials an external number.
•The PBX checks whether the phone number or the phone number range is specified in the exception numbers (VoIP/GSM routing) and switched on for the current configuration.
•If the phone number is found, the PBX automatically forwards the dial attempt to the connections set up there, while taking into account the dialling operations.
•If the phone number is not in the list of exception numbers (VoIP/GSM routing), or it is not enabled for the currently valid configuration, the system checks whether a preferred exchange line has been configured.
•If no preferred exchange line has been configured, or the preferred exchange line is a land line connection, the system checks the phone number, on the basis of the LCR networks (if LCR is configured and enabled), and then dials it on a land line connection.
*Note: The VoIP/GSM routing is performed depending on the destination number, if the exchange line settings (subscriber, group) do not prevent this (e.g. exchange line authorisation only for selected connections, preferred exchange line, call restrictor).
*Note: If a call is initiated over a targeted VoIP access point, VoIP/GSM routing is not carried out.
*Note: The special numbers provided by the VoIP provider, for checking one's account status or dialling, for example, usually do not include a local code. It is not possible to route numbers via the exception table. In order to correctly dial these phone numbers, use targeted exchange line assignment with the account number (targeted VoIP access point).
*Note: When you dial one of the local numbers (phone number without a prefix) listed in the exception number table over a VoIP access point, the PBX automatically converts the phone number as specified under Présentation du numéro de téléphone (appels sortants) for the VoIP provider.
*Note: For all DSL connections that are not made over a dedicated line, some VoIP provider reset the DSL line at least once within 24 hours. This terminates calls currently in progress.