Versions: CM3.13aSPD, 3640 Running 12.2(8)T1 IOS
voice-port 2/0/0
no comfort-noise
timing hookflash-in 700
description CORDLESS PHONE.
Attempts to transfer with hookflash fail. Timing is correct (line won't drop), though transfer will not function - call remains active. Some documentation indicates change to timing hookflash-out, though this command is not support in this IOS, and setting DTMF H245-signalling on associated VoIP dial-peer, though this didn't appear to work.