Hi, I appreciate there are several discussion along this line already, however I have a H323 configured gateway on a CUCM for PSTN access, with an FXS Card used by Fax Machines which is controlled by MGCP.
Reading the exiting posts I believe they describe fallback for when the PSTN access is also MGCP, I hope the below will explain my problem.
Below is an extract of the config at present.
application
global
service alternate Default
!
ccm-manager fallback-mgcp
ccm-manager redundant-host 10.79.0.11
ccm-manager mgcp
no ccm-manager fax protocol cisco
ccm-manager music-on-hold
ccm-manager config server 10.79.16.18 10.79.16.10
ccm-manager config
!
mgcp
mgcp call-agent 10.79.16.11 2427 service-type mgcp version 0.1
mgcp modem passthrough voip mode nse
mgcp package-capability rtp-package
mgcp package-capability sst-package
mgcp package-capability pre-package
mgcp default-package mt-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp fax t38 inhibit
!
mgcp profile default
!
dial-peer voice 999010 pots
service mgcpapp
port 0/1/0
!
dial-peer voice 999011 pots
service mgcpapp
port 0/1/1
!
dial-peer voice 1 pots
description *** DEFAULT INCOMING - PSTN ***
incoming called-number .
direct-inward-dial
port 0/0/0:15
!
dial-peer voice 2 voip
description *** DEFAULT INCOMING - VOIP ***
voice-class codec 1
voice-class h323 1
incoming called-number .
!
dial-peer voice 10 pots
destination-pattern 9T
progress_ind setup enable 3
progress_ind alert enable 8
progress_ind progress enable 8
progress_ind connect enable 8
direct-inward-dial
port 0/0/0:15
!
dial-peer voice 100 voip
description *** CUCM - PRIMARY ***
preference 1
destination-pattern 513....
voice-class codec 1
voice-class h323 1
session target ipv4:10.79.0.11
dtmf-relay h245-alphanumeric
fax rate disable
ip qos dscp cs5 media
no vad
!
dial-peer voice 101 voip
description *** CUCM - SECONDARY ***
preference 2
destination-pattern 513....
voice-class codec 1
voice-class h323 1
session target ipv4:10.79.16.11
dtmf-relay h245-alphanumeric
fax rate disable
ip qos dscp cs5 media
no vad
!
To enable the FXS (extension 513100) to recieve calls in SRST I believe I need a new dial-peer along the lines of:
dial-peer voice 201 pots
description *** FXS 0/1/0 for SRST ***
incoming called-number 513100
port 0/1/0
However, if I add this configuration all inbound calls to 513100 even when not in SRST will match dial-peer 201 rather than 100 or 101, will I need to configure 3 new dial-peers? 1st pref IP of CUCM Primary, 2nd pref IP of CUCM Secondary and 3rd pref Port 0/1/0, this will then route the call to the CUCM Subscribers under normal operation but send straight to the FXS port when in SRST?
