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New Member

mgcp question

Now, I find thtre are some trouble in my IPT in running process. The PSTN call can enter into MGCP gateway(I ckeck it through debug isdn q931),but the call can't go to CCM. I find the mgcp is deactive in MGCP VG(I check it through sh mgcp in mgcp VG). After I restart MGCP in VG through no mgcp then mgcp command, the question is solved. Why ? The question comes in the running process.

7 REPLIES
Bronze

Re: mgcp question

Its possible that the MGCP keepalives were not being sent or received by the gateway and thus the gateway probably unregistered with the CM.

Check out this link:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vvfax_c/voipt_c/vtstech/vts_mgcp.htm#wp1035765

Show mgcp stat could be a useful command for finding out if the the connection is being dropped due to missed mgcp keepalives.

New Member

Re: mgcp question

I'm not agree with mparekh. Because my MGCP VG is in remote office and the MGCP is deployed SRST. If the MGCP VG can't register with the CM, the SRST should work in and PSTN can go into remote office and remote office can't communicate with centre office.But now, the question is the PSTN can't go into remote office and the remote office can communicate with centre office. So I'm very confused.Why?

New Member

Re: mgcp question

hi,

Can u please paste the config...

New Member

Re: mgcp question

controller E1 0/1/0

pri-group timeslots 1-31 service mgcp

interface Serial0/1/0:15

no ip address

isdn switch-type primary-net5

isdn incoming-voice voice

isdn bind-l3 ccm-manager

no cdp enable

voice-port 0/1/0:15

!

voice-port 0/2/0

!

voice-port 0/2/1

!

voice-port 0/2/2

!

voice-port 0/2/3

!

ccm-manager fallback-mgcp

ccm-manager redundant-host 10.48.198.5

ccm-manager mgcp

ccm-manager music-on-hold

ccm-manager config server 10.48.198.6 10.48.198.5

ccm-manager config

!

mgcp

mgcp call-agent 10.48.198.6 2427 service-type mgcp version 0.1

mgcp dtmf-relay voip codec all mode out-of-band

mgcp rtp unreachable timeout 1000 action notify

mgcp modem passthrough voip mode nse

mgcp package-capability rtp-package

no mgcp package-capability res-package

mgcp package-capability sst-package

no mgcp package-capability fxr-package

mgcp package-capability pre-package

no mgcp timer receive-rtcp

mgcp sdp simple

mgcp rtp payload-type g726r16 static

!

mgcp profile default

!

sccp local Loopback0

sccp ccm 10.48.198.5 identifier 2 version 4.0

sccp

!

sccp ccm group 100

associate ccm 2 priority 2

associate profile 10 register BJ3825_CFB

associate profile 20 register BJ3825_xcode

associate profile 30 register BJ3825_MTP

keepalive retries 5

switchover method immediate

switchback method immediate

switchback interval 15

!

dspfarm profile 20 transcode

codec g711ulaw

codec g711alaw

codec g729ar8

codec g729abr8

codec gsmfr

maximum sessions 6

associate application SCCP

!

dspfarm profile 10 conference

codec g711ulaw

codec g711alaw

codec g729ar8

codec g729abr8

codec g729r8

codec g729br8

maximum sessions 2

associate application SCCP

!

dspfarm profile 30 mtp

codec g711ulaw

maximum sessions hardware 4

associate application SCCP

!

!

dial-peer voice 2 pots

service mgcpapp

destination-pattern 7399

port 0/2/0

!

dial-peer voice 3 pots

service mgcpapp

port 0/2/1

!

dial-peer voice 4 pots

service mgcpapp

port 0/2/2

!

dial-peer voice 5 pots

service mgcpapp

port 0/2/3

!

dial-peer voice 7399 pots

destination-pattern 65637399

port 0/2/0

!

dial-peer voice 100 pots

destination-pattern 9T

incoming called-number 7[2-4]..

direct-inward-dial

port 0/1/0:15

!

dial-peer voice 999020 pots

service mgcpapp

port 0/2/0

!

dial-peer voice 999021 pots

service mgcpapp

port 0/2/1

!

dial-peer voice 999022 pots

service mgcpapp

port 0/2/2

!

dial-peer voice 999023 pots

service mgcpapp

port 0/2/3

!

!

!

call-manager-fallback

max-conferences 12 gain -6

ip source-address 10.48.200.1 port 2000

max-ephones 100

max-dn 200 dual-line

dialplan-pattern 1 65637388 extension-length 4 extension-pattern 6200

dialplan-pattern 2 6563.... extension-length 4

keepalive 60

voicemail 902161053650

time-format 24

New Member

Re: mgcp question

hi,

i may be incorrect but i believe the following commmand is missing :

ccm-manager switchback

To specify the time when control is to be returned to the primary Cisco CallManager server once it becomes available, use the ccm-manager switchback command in global configuration mode. To reset to the default, use the no form of this command.

ccm-manager switchback {graceful | immediate | schedule-time hh:mm | uptime-delay minutes}

New Member

Re: mgcp question

I think I need not this command.Because the default switchback is graceful.

New Member

Re: mgcp question

can u paste sh ccm-manager output

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