Customized Ring Signals
Voice Gateways System Manual 91
C.3 Customized Ring Signals
The called VG can play customized ring signal specified in the Alert-Info header
instead of playing local configured ring signal.
The VG supports up to 10 different ring signal, that can be edited in the Ini file.
C.4 Spanning Tree Working Mode
Configuration
The Spanning tree working mode on VG11/22 can be configured as one of the
following:
OFF: DRG does not send STP packets out and the port goes into forwarding
state directly whenever an interface is active. This is the default working mode.
FAST: DRG sends STP packets out and the port goes into forwarding state
directly whenever an interface is active.
ON: DRG sends STP packets out and the port stays in listening state whenever
an interface is active. The port state is then transferred as per what
IEEE802.1D describes.
The spanning tree mode is configured in the Ini file.
C.5 Ring Signal Frequency and Amplitude
Configuration
Ring signal frequency and amplitude can be configured, as follows:
Ring signal frequency: 16,20,25,50Hz.
Ring amplitude: 15-94 in Vpk.
The ring signal and frequency are configured in the Ini file.