Our DR Site which is connected to our HQ and we have 100 Cisco IP 7941 phones. If a call coming into head office and ring on the phones in our DR Site, we can hear the customer and they can hear us. However, when a call comes into the DR Site from a branch office, the customer can hear us but we cannot hear them.
Any ideas anyone?
your last post confirms you have missing routing information :
there is a default static route but is not useful to reach the DR site VOIP subnet.
just one question:
the BGP config is from branch or from HQ ?
if it is from HQ you need to look at
neighbor 10.1.1.202 distribute-list 4 out
neighbor 126.96.36.199 distribute-list 8 out
be aware that you may need to update two ACLs:
the one used outbound on HQ router
the one used inbound on branch router
I see you have an eBGP session with service provider router and an iBGP session with a router this makes the scenario a little more complex.
And yes you can perform additive (only additive changes ) to ACL on the fly as explained on one of previous posts.
probably adding the line to acl 8 where you see all the other VOIP subnets is a good move.
Hope to help