Manual

Support for QSIG Over BRI and Q.931 Over BRI Backhaul
Reference Information
49
Cisco MGC Software Release 9.5(2)
External Node Types
Table 8 lists the external node types, the software release in which they were introduced, and the
signaling service types they support.
*.mgcpGWRspAckTimeout Enables the MGC to discard respAcks in the buffer for which the gateway no
longer expects acknowledgements. Value range: any positive value (in seconds).
Default: 30
Note Set this value to the same duration as the gateway’s command/response
timeout value.
*.mgcpMaxRspAckToBuffer Enables the MGC to buffer the number of response acknowledgements specified
by this property before tagging them in the K-parameter in the next mgcp
command. Value range: 0 (disable) to any positive value.
Default: 0
*.mgcpRetxCount A limit on the number of retransmissions before declaring failure. (MGCP
protocol.) Value range: 0 through 10.
Default: 3
*.mgcpLocalIpInterfacePollCount This poll count defines the number of attempts to be performed to reach the
remote GW using each configured local IP interface. Value range: any positive
value.
Default value: 6
*.mgcpRemoteIpPollCount This poll count defines the number of retry audit messages to be sent to the
remote gateway. Value range: any positive value.
Default Value = 3
*.mgcpRetxTimer A limit on the time to wait for a response from a gateway before retransmitting
the message. (MGCP protocol.) Value range: 0 through 60000.
Default: 1000
Note To prevent possible hung calls on a MGW, the recommended value is
4000.
*.T309Time For timer NT309. In pri_10.mdl. Value range: 6000 through 900000, in
milliseconds.
Default: 90000 milliseconds
*.T310Time For timer 310, which is started when the Call Proceeding message is received by
the MGC and is stopped when the Alerting, Progress, Connect, or Disconnect
messages are received. Value range: 3000 through 120000, in milliseconds.
Default: 10000
Table 7 MGCP Properties (continued)
Property Definition