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New Member

SRST Fallback using H323 Gateways...

Scenario:

Call Manager (3.1.3aspF) with Unity Integration (3.1.2b)

Centralized call processing | Router= C4224 w/2FXO cards 1-wic1dsuT1

When the data T1 is up the calls are plarred to a CTI route point on the call manager which then sends the call to unity for schedule checking, then if the schedule is open its sent back to call manager and then out to the correct gateway to ring the phone.

When the Data T1 goes down and SRST kicks in there is no way to translate the plarred number on the voice ports. To ring a DN on the call-manager-fallback dial-peers. I need the equivalent of hairpinning which would use dial-peer 21 when the Data T1 is up and dial-peer 81 when its down... Doesn't work.. Anyone see what i am doing wrong???

So say the config is like this:

voice-port 3/0

connection plar 8590

!

voice-port 3/1

connection plar 8590

! This is for the 1st part of the outgoing call leg to the pstn

dial-peer voice 20 voip

description Outbound call leg for Internal DN's 4950-4959

preference 1

destination-pattern 495.

progress_ind setup enable 3

voice-class codec 1

voice-class h323 1

session target ipv4:1.2.3.4

dtmf-relay h245-alphanumeric

ip qos dscp cs5 media

no vad

! This is the second call leg for outgoing calls

dial-peer voice 92 pots

description First Analog DP matched for Outbound/Originate call legs Local

preference 1

destination-pattern 9T

port 3/1

! For routing the plarred number to Call Mgr.

dial-peer voice 21 voip

description Outbound call leg for Unity time check on incoming calls

preference 1

destination-pattern 8590

progress_ind setup enable 3

voice-class codec 1

voice-class h323 1

session target ipv4:161.137.24.11

dtmf-relay h245-alphanumeric

ip qos dscp cs5 media

no vad

! This is to avoid using the default dial-peer (pid:0) 1st call leg incoming calls

dial-peer voice 83 pots

description Dum Dial-peer for calls with no ANI/CLID

incoming called-number .

destination-pattern .

port 3/0

! This dial-peer creates a hunt group and goes want it to become active when the Data T1 goes down...

1st try i used:

dial-peer voice 81 pots

preference 2

destination-pattern 8590

translate-outgoing called 10

port 3/0

2nd try i used:

dial-peer voice 81 voip

preference 2

destination-pattern 8590

progress_ind setup enable 3

translate-outgoing called 10

voice-class codec 1

voice-class h323 1

session target ipv4:161.137.24.11

dtmf-relay h245-alphanumeric

ip qos dscp cs5 media

no vad

! Translation rule for dial-peer 81

translation-rule 10

Rule 0 8590 3807570 unknown network

1 REPLY
New Member

Re: SRST Fallback using H323 Gateways...

Hello,

I think you need to use an alias under your call-manager-fallback config.

So, you'd have something like this;

call-manager-fallback

alias 1 8590 to 1111

dial-peer voice 81 pots

destination-pattern 1111

port 3/0

That's how I do it anyway..

Hope this helps.

Vance

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