Atxfer not working to parking extension

this started happening before i installed the metermaid patch, and it persists now. if i try an atxfer to my parking extension i get dead air followed by a timeout on zap channels, and the call is destroyed instantly on sip channels.

the cli doesnt say anything.

people are gonna be tempted to tell me the metermaid patch is breaking it, but i insist that the whole reason that i installed this patch was due to this strange behavior. At least now i have a light to kinda indicate where the call went, and thus have some functional parking.

we werent using parking befure because asterisk was sitting under an old key system.