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  1. From the Create Signaling Group drop down box at the top of the Signaling Group Table, select CAS Signaling Group. 

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Click here for detailed information about Call Forward
Click here for detailed information about Call Forward

The Call Forwarding feature enables a phone connected to an FXS port to forward incoming calls to another configured telephone number. The SBC supports unconditional call forward on an individual port basis. Call Forward is activated/deactivated on a port with configured specific service codes, accompanied by the forward number. Once the user enters the configured keycode and forward telephone number, all outgoing calls to the port will then be redirected to the forwarding number. When the outgoing call routes to a port that is forwarded, the phone on that port generates a short ring.

In North America, the NANP defines *72<forward number> for activation and *73 for deactivation, but the SBC enables you to configure any 6 character combination for activation and/or deactivation. The SBC enables a keycode to have a minimum length of 3 characters and a maximum of 6; this is based on what is commonly used today.

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The SBC supports a basic Unconditional Call Forward, but it allows various characters to be configured for keycodes. This includes the '#' character, which is defined in the SBC as an End of Dial digit. In order to determine if an entry is part of a Call Forward activate or deactivate keycode, End of Dial behavior is ignored for the first 6 characters dialed. If the SBC finds that the digits do not match the call forward keycode, it will parse the number backwards to the last '#' (if there is one) and remove it before sending the number for routing. This means that '#' will not stop the inter-digit timer and immediately send the number during collection of the first 6 digits.

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Click here to read how to activate Call Forward on a Telephone
Click here to read how to activate Call Forward on a Telephone

Activate through a Telephone

The Call Forward feature can be initiated with the following steps:

  • Lift the handset to the port (in which calls will be forwarded) and enter the activate keycode + forwarded number, followed by the '#' key on the telephone.
  • A confirmation tone (fast beep) indicates a successful Call Forward. A congestion tone (busy tone) indicates call forward failed.
  • An activation at the physical phone level automatically activates the feature for the applicable channel in the Assigned Channels table. See Assigned Channels - Field Definitions.

Deactivate through a Telephone

  • Lift the handset connected to the port in which calls are being forwarded (that requires deactivation) and enter the deactivate keycode.
  • A confirmation tone (fast beep) indicates a successful Call Forward deactivation. A congestion tone (busy tone) indicates call forward has not been deactivated.

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