Can the “inter-digit” timer be extended so users don time out when trying to dial a call?
If users need additional time to reference a call while they are dialing, a better way to dial would be to keep the handset in the cradle (on-hook), dial the number, then hit either send or dial. Dialing this way, acts more like a cell phone. This method also gives you the ability to “delete” a digit, if you make a mistake.