VSP735 Administrator and Provisioning Manual
35
WebUI:
System
Enable G.729
Annex B
When G.729a/b is enabled, select to enable G.729 Annex B, with
voice activity detection (VAD) and bandwidth-conserving silence
suppression.
Quality of Service
Setting Description
DSCP (voice)
Enter the Differentiated Services Code Point (DSCP) value from the
Quality of Service setting on your router or switch.
DSCP (signalling)
Enter the Differentiated Services Code Point (DSCP) value from the
Quality of Service setting on your router or switch.
Signaling Settings
Setting Description
Local SIP port
Enter the local SIP port.
Transport
Select the SIP transport protocol:
TCP (Transmission Control Protocol) is the most reliable protocol
and includes error checking and delivery validation.
UDP (User Datagram Protocol) is generally less prone to
latency, but SIP data may be subject to network congestion.
TLS (Transport Layer Security)—the phone supports secured
SIP signalling via TLS. Optional server authentication is
supported via user-uploaded certificates. TLS certificates are
uploaded using the configuration file. See “file” Module:
Imported File Settings on page 141 and consult your service
provider.