CCM7 cluster

Answered Question
Feb 27th, 2009
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I have a 3 site cluster

site A has pub and sub1

site B sub2

site C sub3


All PSTN calls arrive at site A.


On the gateway for site A.

Should my dial-peer point to the Sub1 at site A. as the PUB is not doing call-processing?


or would it be better to point the site specific range at the relevant subscriber?

Correct Answer by Kenneth Mohammed about 8 years 2 months ago

Yes, this is correct, any subscriber, as well as the publisher, can handle call processing.


Hope that helped, if so please rate.

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Kenneth Mohammed Fri, 02/27/2009 - 09:19
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Hello,


Just configure your dial-peers using the "preference" statement, and point each of them to a subscriber, and point the one with the lowest preference to the pub. This way, if any of the subs are down, calls can still be processed by another subscriber. See example:


dial-peer voice 1 voip

destination-pattern .T

session target ipv4: [sub1 IP]

dtmf-relay h245-alphanumeric


dial-peer voice 2 voip

destination-pattern .T

session target ipv4: [sub2 IP]

preference 1

dtmf-relay h245-alphanumeric


dial-peer voice 3 voip

destination-pattern .T

session target ipv4: [sub3 IP]

preference 2

dtmf-relay h245-alphanumeric


dial-peer voice 4 voip

destination-pattern .T

session target ipv4: [Pub IP]

preference 3

dtmf-relay h245-alphanumeric


Hope that helped, if so please rate.

pcromwell Fri, 02/27/2009 - 09:45
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many thanks,

so if for example a PSTN call comes in on the gateway at site A and it is destined for a DDI at site C, any subscriber can do the call setup. It doesn't have to be done by sub3 at site C.


Correct Answer
Kenneth Mohammed Fri, 02/27/2009 - 09:51
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  • Silver, 250 points or more

Yes, this is correct, any subscriber, as well as the publisher, can handle call processing.


Hope that helped, if so please rate.

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