Oneself gateway can be part of two different Route Group?.
That alternatives have so that the route pattern GSM can use the gateway PSTN (192.168.20.8)once the gateway GSM(220.127.116.11)no longer has available voice channels.
Knowing that the pattern pstn uses the gateway pstn (192.168.20.8)directly,
As I can make possible the scenario that I show in the picture?.
the two gateways are H.323
CCM version is 3.34
available voice channels on the gateway PSTN : 60 (sixteen)ch
available voice channels on the gateway GSM : 04 (four)ch
please Help me friends
Check this URL for Call admission control in call manager.