Draytek 2910 manual Status, Disallow VoIP to Isdn Calls with the Following Prefixes

Disallow VoIP to ISDN Calls with the Following Prefixes

Payload Type (rfc2833) - Choose a number from 96 to 127, the default value was 101. This setting is available for the OutBand (RFC2833) mode.

Set the prefix of the phone number to forbid the user dialing through VoIP to ISDN. All the phone number with the prefix specified here will not be allowed to connect through the router. If a user dials the number by force, the router will disconnect it automatically. The figure that you can type in this field is limited one to eleven with digits from zero to nine.

3.10.4 Status

On VoIP call status, you can find codec, connection and other important call status for VoIP 1/2 ports.

Refresh Seconds	Specify the interval of refresh time to obtain the latest VoIP
	calling information. The information will update immediately
	when the Refresh button is clicked.

Port	It shows current connection status for the port of VoIP1,
	VoIP2, ISDN1 and ISDN2. The ISDN1/2 appears only when
	the router is equipped with ISDN interface. ISDN1 means B1
	channel for the physical ISDN port; ISDN2 means B2 channel
	for the physical ISDN port. Be aware that ISDN1/2 port is
	available for the users living in Europe and using Vigor
Vigor2910 Series User’s Guide	141