Forwarding all of your calls to an external number is best accomplished by using the phone company forwarding option but if that feature is not available the NEC DSX can be programmed to forward calls for you. There are two methods for doing an off-premise forward, tandem trunking or flash transfers.
Tandem trunking uses two phone lines, one incoming line and one outgoing line, to transfer calls to an off-premise number. These two lines will be tied up for the duration of the conversation. When using Tandem Trunking you want to make sure that you have the phone company feature disconnect supervision (sometimes called far-end disconnect or gauranteed disconnect) on your lines, otherwise your lines might stay tied up after the conversation has finished.
Flash Transfer is the preferred method for transferring calls off premise. A flash transfer transfers the caller back out on the same line they called in on, thus removing the call from your phone system and freeing that line for another incoming caller. To use this feature you will need to have the flash transfer (or 3rd party conference) feature from your telephone company.
Possible Uses:
One great way the NEC DSX phone system can save your company money is by eliminating your night answering service. Your service department dispatcher’s telephone rings direct for lines 1-4 during the day. The dispatcher answers calls on those lines and assigns technicians accordingly. At night, the calls on lines 1-4 must automatically route to the technician on call for emergency service. The NEC DSX phone system feature that makes this possible is “Off Premises Call Forwarding”. This feature allows your service department dispatcher to forward the calls to an off-site location (such as a cell phone or remote office). This can be set up using either the tandem trunking or flash transfer methods above.
Any NEC DSX phone system keyset users can also stay in touch by having Off Premises Call Forwarding automatically forward their calls while they are away from the office. To set up Off Premises Call Forwarding, the user selects the line or Line Group over which the call should route, as well as the number the NEC DSX phone system should dial. The number dialed can be from an extension’s personal speed dial bin containing an outside number, or the user can enter an outside number directly into their personal speed dial bin 720. When a call rings the forwarded extension, the NEC DSX phone system selects the specified line or group and then out dials the stored number. Currently this implementation of off premise forwarding only works with the tandem trunk method.
Programming:
Note: This method will only work if a caller is transferred directly to OR directly dials your extension number, this will not work on KEY RINGING Calls or group calls.
- With the handset down press Intercom * 3
- Press the sofkey under More.
- Press the softkey under OffP. If you don’t have OffP as an option then your extension’s class of service does not allow off-premise forwarding.
- Press the softkey under Num.
- Enter 90 for the Line/Group/Intercom and press HOLD: This is where you tell the phone system what line to dial out on. 90 is like dialing 9, it will grab the last available line on the phone system. If you wanted to dial out only on line 3 you could enter 103 here.
- Enter the telephone number you want your calls forwarded to and press HOLD. The number should be entered the same as if you were dialing it from one of the NEC DSX phones.
- Press the softkey under All to forward intercom calls and outside calls OR the button under Line to just forward outside calls.
- Your telephone display should now read FWD OFP>> XXXXXXXXXX
To Cancel Off Premise Forwarding press Intercom * 3 and choose the new forwarding type.
