Got a customer we're trying to migrate from an existing VG248 (SCCP) hooked to a Positron 911 system to a VG224. I have SCCP configured on the VG224 (IOS ver 15.1.3T2). Customer is stating that when they get a call and try to initiate a transfer (via hook flash), they get dead air. The only thing I haven't done is change the Max Calls on the DN to 2 from 1 based on some other threads I've read. Any recommendations on what else I can try? It's hard to get a schedule setup to cutover the VG224 as it is attached to a 911 system so my maintenance window is very very small and I'm hoping to have several things I can try within that small window. Much appreciated.
timeouts ringing infinity
timing hookflash-in 800 20
In addition to this, customer is stating that when a caller calls in and the dispatcher answers, they still hear an extra ring and therefore does not hear the full greeting from the dispatcher. Not sure if anyone's run into this.