Draytek 2910 manual Loop through

This page will differ for different models. Below is a sample page obtained from Vigor 2910VGi. The selection of Loop through and Backup Phone Number is only available for 2910VGi model.

Enable	Click this to enable this entry.
Phone Number	The speed-dial number of this index. This can be any number
	you choose, using digits 0-9and * .
Display Name	The Caller-ID that you want to be displayed on your friend’s
	screen. This let your friend can easily know who’s calling
	without memorizing lots of SIP URL Address.
SIP URL	Enter your friend’s SIP Address
Loop through	For the model of Vigor 2910VGi, the selection should be as
	the following:

Backup Phone Number When the VoIP phone is obstructs or the Internet breaks down for some reasons, the backup phone will be dialed out to replace the VoIP phone number. At this time, the phone call will be changed from VoIP phone into PSTN call according to the loop through direction chosen. Note that, during the phone switch, the blare of phone will appear for a short time. And when the VoIP phone is switched into the PSTN phone, the telecom co. might charge you for the connection fee. Please type in backup phone number (PSTN number) for this VoIP phone setting.

126 Vigor2910 Series User’s Guide