[Asterisk-Users] Indications missing on Cisco FXO -> ATA-186 (SIP)

[Fran Boon]

Calling from a Cisco FXO port to an ATA-186 (SIP 3.1 image) via * 
(either CVS-HEAD-06/28/04-11:43:41 or CVS-HEAD-07/12/04-15:49:58)
I didn't hear any ringing sound & get the following on the console:

-- Called 5503
-- SIP/5503-f6b5 is ringing
WARNING[-1323201616]: channel.c:1375 ast_indicate: Unable to handle 
indication 3 for 'SIP/10.10.2.250-9903'
-- SIP/5503-f6b5 answered SIP/10.10.2.250-9903

Looking at channel.c, I can see that this means that 'condition' is 
neither of 'AST_CONTROL_PROGRESS' or 'AST_CONTROL_PROCEEDING'.
Presumably it's 'AST_CONTROL_RINGING', so why is this not handled?

(NB Calls go through fine - all ulaw currently)

Thanks a lot,
Fran.