User`s guide

70 Dialogic
®
1000 and 2000 Media Gateway Series User’s Guide
Parameter Reference
VoIP Host Monitor Interval
Description: Interval in which VoIP hosts are monitored to determine on-line status. Valid only if
there are VoIP Host Groups in the Routing Table that have Fault Tolerance enabled.
Allowed Values: 10 - 3600
Default Value = 30
INI File Parameter Name = gwMonitorVoipHostsIntSec
Note: Unit requires a restart if this parameter value is changed.
Proactive DNS Monitoring
Description: When Proactive DNS Monitoring is enabled, the gateway will monitor the IP
addresses obtained from DNS resolution. If an IP address does not respond to SIP OPTIONS pings,
the gateway does not attempt to send it SIP INVITES. When the IP address resumes responding to
SIP OPTIONS pings, the gateway resumes sending it SIP INVITES.
Allowed Values:
• Yes = the gateway monitors the state of DNS resolved IP addresses.
• No = the gateway does not monitor the state of DNS resolved IP addresses.
Default Value = No
INI File Parameter Name = gwProactiveMonitorDnsARecordsEnabled
Note: Unit requires a restart if this parameter value is changed.
3.3.7 QoS Group
The Quality of Service (QoS) subgroup includes the following parameters:
• Call Control QoS Byte
Call Control QoS Byte
Description: The Call Control QoS Byte parameter defines a decimal byte value that represents
QoS bit flags. This parameter is used in each call control (SIP) data packet transmitted from the
Media Gateway with a QoS byte code. Routers use this byte code to assign priority levels to
packets. The QoS byte may be interpreted as either IPv4 TOS or DiffServ.