Hi folks,
had recently tested out a H.323-based voice gateway with 2 CCM (Publisher & Subscriber). As norm, we had the subscriber as the Active & Publisher as Standby for failover.
We then made a call out to the PTSN from an IP Phone, had the Subscriber CM services stopped, and expected the Publisher to failer over immeditaely w/o dropping the ongoing call. However, the call dropped & there was a message displayed on the IP phone indicating the CM has fallenback, and features were disabled. It then took about 20 to 30s for the IP phone to be reverted to the Publisher,but only after some push of the phone's button.
This wasnt the case when MGCP was used for the gateway.
Below is a brief description of my configurations. Would appreciate any feedbacks/comments. Btw, using CCM 3.1.4a, IP Phone firmware 4.8 & IOS
12.2.10B.
dial-peer voice 100 voip
preference 1
destination-pattern 6370....
voice-class h323 1
session target ipv4:10.228.204.5
dtmf-relay h245-signal h245-alphanumeric
codec g711ulaw
ip precedence 5
!
dial-peer voice 1 pots
destination-pattern 0T
progress_ind setup enable 3
progress_ind alert enable 8
progress_ind progress enable 8
direct-inward-dial
port 2/0:15
!
dial-peer voice 101 voip
preference 2
destination-pattern 6370....
session target ipv4:10.228.204.4
dtmf-relay h245-signal h245-alphanumeric
codec g711ulaw
ip precedence 5
!
Thank u!
