Calling Restrictions Feature |
Considerations and Constraints |
In Hybrid/PBX mode, a user on an outward-restricted extension can receive a PSTN call, or can make or receive a private network call. Such an extension cannot be used to make an ARS call, except to emergency numbers. See Allowed / Disallowed Lists for additional information.
Only outgoing calls are affected; users can receive inside, local, and toll calls on restricted extensions and can join any type of call in progress.
When a user with an outward-restricted extension presses the dialpad while on a call, the call is disconnected, a fast busy signal sounds, and the line/trunk is released. The system assumes that the user is trying to make an outside call, which is not allowed because of the outward restriction assigned to the extension.
Users with Pool buttons on their telephones can use the pool even if the pool dial-out restriction is assigned to the extension.
Outward and toll restriction do not work with tie trunks or with T1 lines emulating tie trunks that are set to tie-PBX. ARS or pool dial-out codes should be used to restrict these types of line/trunks.
Because calling restrictions apply to extensions used to initiate a transfer to an outside number, a user with a restricted extension can circumvent restrictions by asking an operator with an unrestricted console to connect an outside call.
When a marked System Speed Dial code is used to dial a number, the System Speed Dial number overrides calling restrictions (such as Outward or Toll Restrictions).
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SECURITY ALERT! |
| The use of loop-start lines without reliable disconnect may result in toll fraud. |
If Centrex service is used, any calling restrictions for the extension must be programmed by the telephone company at the central office.
