I posted this on this board since I think our Voice Gateway's configuration for T1 PRI NFAS signalling is correct. We have 2 T1s configured as NFAS and we can use the PSTN. When I issue the command "sh voice call stat", I can see the number of active calls in the ISDN. When I issue the command "sh isdn service", I can see that calls are distributed to both T1s and corresponds the actual number of active calls. When I issue the command "sh isdn nfas group 1", it correctly shows me the number of available B channels, which is 46 minus number of active calls.
However, the problem I am having is in Call Manager, whenever we reach 23 active calls in the Voice Gateway, the Route List in Call Manager fails over to the other Route Group defined in the Rouote List. Which essentially means that eventhough we have 2 T1s and we should be able to have 46 calls (both D channels are used, 1 Primary and 1 Backup), we're limited to 23 calls (B channels). Any idea? Thanks.