Configuration Guidance on FXO Ports connecting to GSM Gateway

[Solomon Rufus Kavala]

Hello Team,

We have CUCM 8.5.1 cluster and recently we have added a new SRST site at Turkey to the cluster. We have one E1 PRI and one E1 CAS configured in the gateway. Along with that we have two VIC2-4FXO (8 FXO ports) cards installed in the router. We have H323 setup as a Voice Protocol in the gateway. We have a GSM Gateway connected to FXO Ports, with couple of SIM numbers already in place. When people call mobile phones in turkey, call  has to go through GSM gateway rather than  ISDN, We need ISDN as a fallback. Please help me out to break up the Jinx. Let me know what need to be added in the gateway to achieve this requirement. Please find current gateway configuration.

Thanks,

Solomon.

[Anas Abueideh · Accepted solution]

Hi Solomon,

you need to configure dial-peers with precedence, you need to add preference command under the dial-peers, the lower has high priority.

let us assume the mobile pattern in turkey is 905XXXXXXXX

voice translation-rule 5

  rule 1 /^9\(.*\) /\1/

voice translation-profile remove9

dial-peer voice 10 pots

  description mobile calls to GSM

  preference 1

  destination-pattern 905........$

  translation-profile outgoing remove9

  forward-digits all

  port 0/3/0

dial-peer voice 11 pots

description mobile calls to GSM through ISDN

  preference 5

  destination-pattern 905........$

  translation-profile outgoing remove9

  forward-digits all

  port 0/0/0:15

HTH

Anas

please don't forget to rate the helpful posts

[Solomon Rufus Kavala]

Thank you very much Anas. Just one question,shall I go ahead and delete all stcapp dialpeers configured for FXO ports from the gateway.

dial-peer voice 3010 pots

service stcapp

port 0/2/0

!

dial-peer voice 3011 pots

service stcapp

port 0/2/1

!

[Solomon Rufus Kavala]

Anas,

This would be my new configuration,which I will add in the gateway. Please let me know, whether I need to add any other configuration.

voice translation-rule 5

  rule 1 /^9\(.*\) /\1/

!

voice translation-profile Digit-Strip9

  translate called 5

!

dial-peer voice 10 pots

  trukgroup FXO

  description mobile calls to GSM

  preference 1

  destination-pattern 905.........$

  translation-profile outgoing Digit-Strip9

  progress_ind alert enable 8

  progress_ind progress enable 8

  progress_ind connect enable 8 

  forward-digits all

!

dial-peer voice 11 pots

description mobile calls to GSM through ISDN

  preference 5

  destination-pattern 905.........$

translation-profile outgoing Digit-Strip9

  forward-digits all

  port 0/1/0:15

!

trunk group FXO

description *****For Mobile Phones*****

hunt-scheme sequential both down

voice-port 0/2/0

trunk-group FXO 1

timing hookflash-out 50

timing guard-out 1000

!

voice-port 0/2/1

trunk-group FXO 2

timing hookflash-out 50

timing guard-out 1000

!

voice-port 0/2/2

trunk-group FXO 3

timing hookflash-out 50

timing guard-out 1000

!

voice-port 0/2/3

trunk-group FXO 4

timing hookflash-out 50

timing guard-out 1000

!

voice-port 0/3/0

trunk-group FXO 5

timing hookflash-out 50

timing guard-out 1000

!

voice-port 0/3/1

trunk-group FXO 6

timing hookflash-out 50

timing guard-out 1000

!

voice-port 0/3/2

trunk-group FXO 7

timing hookflash-out 50

timing guard-out 1000

!

voice-port 0/3/3

trunk-group FXO 8

timing hookflash-out 50

timing guard-out 1000

!

Message was edited by: Solomon Rufus Kavala

[Anas Abueideh]

yes, you can remove service stcapp

HTH

Anas

please don't forget to rate the helpful posts

[Solomon Rufus Kavala]

Hi Anas,

Please let me know whether the configuration posted by me was good enough to go. So that I will go ahead and implement the same in my production gateway. Thank you for your advice.

Thanks,

Solomon.