Draytek Vigor2500V Manual page 142

Remote Activation: Specify a phone number in the Remote Activation
field to enable the remote activation function. If the router accepts a call
from the number 12345678, it will disconnect the incoming call
immediately and dial to the pre-specified ISP.
Internet Access Setup > Dialing to a Single ISP should be pre-set
properly.
PPP/MP Dial-Out Setup
Basic Setup :
Link Type: Link Disable, Dialup 64Kbps, Dialup 128Kbps, Dialup BOD
PPP Authentication: Specify the PPP authentication method for
PPP/MP connection.
compatibility.
TCP Header Compression: VJ Compression is used for TCP/IP
protocol header compression. Normally activate VJ Compression to
improve bandwidth utilization.
Idle Timeout: The ISDN connection will be dropped once there is no
further data traffic within the specified duration.
BOD Setup :
BOD stands for bandwidth-on-demand for Multiple-Link PPP (ML-PPP or
MP). The corresponding parameters are shown below.
Call Control
Normally set to PAP/CHAP for the widest
15-3