Anthony Rodgers a écrit :
Greetings,
We are currently testing a Sipura SPA-3000 as a gateway from our
Asterisk system to a PSTN line for 911 access. We have a number of
locations and want to place an SPA-3000 in each, connected to a PSTN
line that will provide the correct ANI/ALI information to 911 for each
location.
It all works great, except for a reasonably significant (4 seconds)
delay between when the SPA-3000 answers the SIP call from the Asterisk
server (immediately upon dialing, according to the Asterisk CLI) and
the ringing tone begins (the remote phone begins ringing at that same
time).
The delay is enough for users to think that the phone isn't working -
not what you want for 911!
Any ideas?
You could use the 'r' flag in your Dial() command to simulate a ringing
tone instantly. This is less than ideal though. Have you done some SIP
traces (using ngrep for examples) to look when the SIP 'ringing' signal
is actually being sent?
Cheers,
Jean-Michel.
--
Jean-Michel Hiver - http://ykoz.net/
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