From: William Chen (kwchen@netvigator.com)
Date: Fri Dec 12 2003 - 22:41:31 GMT-3
Dear Group,
Just want to get more information about the matching of the inbound dial
peer:
First of all, if you configure a VOIP call between R1 and R2:
R1:
dial-peer voice 1111 pots
destination-pattern 7031111
port 1/0/0
dial-peer voice 2222 voip
destination-pattern 7032222
session target ipv4:192.168.1.2
R2:
dial-peer voice 2222 pots
destination-pattern 7032222
port 1/0/0
dial-peer voice 1111 voip
destination-pattern 7031111
session target ipv4:192.168.1.1
Then you try to make a call simulation by using the "csim start
7032222" from R1. The call will be successful but R2 do not pick the
dial-peer 1111 as the inbound dial peer. So even the two VOIP peer have
different CODEC setting, the call will be successful. (I test it in a lot of
lab scenario, and I come to this conclusion, please correct me if I am
wrong)
According to DocCD, it states that the matching of inbound dial-peer is
done by comparing with the calling or called number. Since I don't think
"csim start" command will carry the calling number, you can only match the
inbound dial-peer by using the called number. The command allow you to doing
this is "incoming called-number", Therefore, I put this command in both VOIP
dial-peer:
R1:
dial-peer voice 1111 pots
destination-pattern 7031111
port 1/0/0
dial-peer voice 2222 voip
incoming called-number 7031111
destination-pattern 7032222
session target ipv4:192.168.1.2
R2:
dial-peer voice 2222 pots
destination-pattern 7032222
port 1/0/0
dial-peer voice 1111 voip
incoming called-number 7032222
destination-pattern 7031111
session target ipv4:192.168.1.1
Now, the two VOIP dial-peers are related, and you should put same CODEC
to them as well as compatible QoS setting; otherwise the call won't works.
(Again, I test it in lots of lab scenarios, especially, the lab require QOS
and CODEC settings).
So, in real exam, should I put the "incoming called-number" in the VOIP
dial-peer?
Best Regards,
William Chen
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