06-18-2008 07:21 PM - edited 03-15-2019 11:22 AM
Is it possible to configure LCR between two CME sites? I have two different CME's that are in two different states and would like to take advantage of the PSTN connections at both sites. I'm currently using h323 dial-peers for 4-digit dialing and toll bypass, but am not quite sure how to get site A to dial out site B's ISDN line for PSTN calls.
I'm using CallManager Express at both sites.
Any hints?
Thanks.
06-18-2008 10:53 PM
Mike,
This can be done. Make the configuration transparent to the IP phone users, so they will just dial the numbers as long distance numbers. Configure redundancy via dial-peers. Two dial-peers will do the trick. The first dial-peer will send the call to the remote gateway for it to be routed out as a local call. If the number dialed is dialed as 91+10 digits, strip the 91 (and the area code if necessary) before sending the call to the remote gateway which should already be configured to route the call out as a local call. The second dial-peer is a failover dial-peer, to be used incase the WAN is down or the remote gateway is not available to route out the call. In this case, the call is sent out the local gateway as a normal long distance call.
The configuration could look somewhat like this:
!
voice translation-rule 4
rule 1 /^91212/ /212/
!
voice translation-profile LCR
translate called 4
!
dial-peer voice 1 voip
description ** LCR Via CME_Site_B **
destination-pattern 91212[2-9]......
translation-profile outgoing LCR
preference 1
!
dial-peer voice 2 pots
description ** LD to CME_Site_B Via Local PSTN**
destination-pattern 91212[2-9]......
preference 2
forward-digits 11
port x/x
!
Hope this helps.
Michael.
06-19-2008 12:55 PM
Michael,
Thanks for the quick reply and the suggestions.
It turns out that I was over complicating things by adding an incoming dial-peer at my far-end system. As soon as I removed that the incoming VoIP calls started routing out the PSTN.
I'll use your preference suggestions for failover dial-peers.
Thanks much,
Mike
06-19-2008 01:48 PM
You are welcome Mike. Good to hear that all is well in your VoIP world :-)
Regards,
Michael.
01-26-2015 04:05 AM
Hi,
Can you please refer to a configuration guide? I would need that quite urgently and I cannot find a general guide so far.
Thank you,
Cecilia
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