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max.bridgewater at gma...
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 Posted: Sat Aug 29, 2009 8:40 pm Post subject: [Freeswitch-users] What is the difference between preAnswer |
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Hi,
Assuming an inbound call, I have trouble understanding what the supposed difference between the following two set of instructions is:
session.execute("ring_ready");
session.set("set", "ringback=/home/ring.wav");
and
session.preAnswer();
session.streamFile("/home/ring.wav")
In practice, however, the first scenario doesn't work for me although the example here suggests otherwise: http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_ring_ready
Any idea?
Thanks,
Max. |
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jason at jasonjgw.net
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| Posted: Sat Aug 29, 2009 8:54 pm Post subject: [Freeswitch-users] What is the difference between preAnswer |
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Max Bridgewater <max.bridgewater@gmail.com> wrote:
| Quote: | Hi,
Assuming an inbound call, I have trouble understanding what the supposed
difference between the following two set of instructions is:
session.execute("ring_ready");
session.set("set", "ringback=/home/ring.wav");
|
Ring_ready sends a SIP "ringing" message and will use your device's default
ringback sound - at least, that has been my experience. I should remember the
message number in the SIP protocol, but I don't (the SIP experts here will
undoubtedly have the details at the ready).
| Quote: |
and
session.preAnswer();
session.streamFile("/home/ring.wav")
|
I think that will play the file as early media.
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mrene_lists at avgs.ca
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| Posted: Sat Aug 29, 2009 11:01 pm Post subject: [Freeswitch-users] What is the difference between preAnswer |
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Hi,
In SIP, ring_ready will send a 180 ringing, pre answer will send a 183
with a session description, so that some audio can be exchanged while
the call isnt answered yet (used a lot for inband error messages etc).
Regards,
Mathieu Rene
Avant-Garde Solutions Inc
Office: + 1 (514) 664-1044 x100
Cell: +1 (514) 664-1044 x200
mrene@avgs.ca
On 29-Aug-09, at 9:50 PM, Jason White wrote:
| Quote: | Max Bridgewater <max.bridgewater@gmail.com> wrote:
| Quote: | Hi,
Assuming an inbound call, I have trouble understanding what the
supposed
difference between the following two set of instructions is:
session.execute("ring_ready");
session.set("set", "ringback=/home/ring.wav");
|
Ring_ready sends a SIP "ringing" message and will use your device's
default
ringback sound - at least, that has been my experience. I should
remember the
message number in the SIP protocol, but I don't (the SIP experts
here will
undoubtedly have the details at the ready).
| Quote: |
and
session.preAnswer();
session.streamFile("/home/ring.wav")
|
I think that will play the file as early media.
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http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
http://www.freeswitch.org
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http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
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msc at freeswitch.org
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