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Using Cisco Unified Communications Manager to Configure MGCP Gateway Support
Configuring MGCP Gateway Support
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Cisco VGD 1T3 Voice Gateway Software Configuration Guide
!DTMF-relay voip codec parameters:
MGCP dtmf-relay voip codec all mode out-of-band
MGCP dtmf-relay for VoAAL2 disabled for all codec types
MGCP voip modem passthrough mode: CISCO, codec: g711ulaw, redundancy: DISABLED,
MGCP voaal2 modem passthrough mode: NSE, codec: g711ulaw
MGCP TSE payload: 0
MGCP Network (IP/AAL2) Continuity Test timer: 200
MGCP 'RTP stream loss' timer: 5
MGCP request timeout 500, MGCP request retries 3
MGCP rtp unreachable timeout 1000
MGCP gateway port: 2427, MGCP maximum waiting delay 3000
MGCP restart delay 0, MGCP vad DISABLED
MGCP simple-sdp DISABLED
MGCP undotted-notation DISABLED
MGCP codec type g711ulaw, MGCP packetization period 20
MGCP JB threshold lwm 30, MGCP JB threshold hwm 150
MGCP LAT threshold lmw 150, MGCP LAT threshold hwm 300
MGCP PL threshold lwm 1000, MGCP PL threshold hwm 10000
MGCP CL threshold lwm 1000, MGCP CL threshold hwm 10000
MGCP playout mode is adaptive 60, 4, 200 in msec
MGCP IP ToS low delay disabled, MGCP IP ToS high throughput disabled
MGCP IP ToS high reliability disabled, MGCP IP ToS low cost disabled
MGCP IP RTP precedence 5, MGCP signaling precedence: 3
MGCP default package: line-package
MGCP supported packages: gm-package dtmf-package trunk-package line-package
hs-package rtp-package ms-package dt-package sst-packagc-package
MGCP VoAAL2 ignore-lco-codec DISABLED
MGCP T.38 Fax is DISABLED
Note
For a description of the fields displayed in this output, see the individual commands in the
Cisco IOS
Voice Command Reference
.
Configuring Cisco Unified Communications Manager Switchover and MGCP
Gateway Fallback
This section describes how to configure Cisco Unified Communications Manager failover capabilities
on the MGCP gateway.
Switchover (Failover)
Cisco IOS gateways can maintain links to up to two backup Cisco Unified Communications Manager
servers in addition to a primary Cisco Unified Communications Manager. This redundancy enables a
voice gateway to switchover to a backup if the gateway loses communication with the primary. The
backup server takes control of the devices that are registered with the primary Cisco Unified
Communications Manager. The second backup takes control of the registered devices if both the primary
and first backup Cisco Unified Communications Manager fail. The gateway preserves existing
connections during a switchover to a backup Cisco Unified Communications Manager.
When the primary Cisco Unified Communications Manager server becomes available again, control
reverts to that server. Reverting to the primary server can occur immediately, after a configurable amount
of time, or only when all connected sessions are released.