[Bug 935] DAD and CID do not match the CallID in rare instances.

http://bugs.hylafax.org/show_bug.cgi?id=935





------- Comment #4 from [email protected]  2010-09-19 01:15 -------
It's a shortcoming in the modem's behavior of presenting the Caller ID and DID
between rings #1 and #2.  If the modem were to present CID and DID *before* the
first ring, then there wouldn't be this problem.

I tackled this issue with IAXmodem in two ways:

1) I created a AT+VRID command which would allow the application to query the
modem for the CID and DID that were associated with the current call.  Thus,
the application wouldn't have to rely on ring counting.

2) I enforced a "dead" time after a call disconnects when the modem is
incapable of receiving more calls... the "dead" time is designed to exceed RING
timeout periods which would allow HylaFAX to reset.  This prevents one call
from coming in on the heels of another and "stealing" the CID/DID from it.

I think that the issue you bring up is something that your modem manufacturer
(Eicon) would have to address in some fashion as I have done with IAXmodem.  I
don't really see any way for HylaFAX to get a permanent solution to this on its
own.


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