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timkelly1980
Intermediate
Joined: February 07 2005
Posts: 25
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| Posted: April 04 2005 at 7:55am | IP Logged
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Hi.
Is it possible to intercept INFO messages sent over the line? My asterisk pbx sends DTMF signals in the form of INFO packets I should like to get a callback from.
I've looked through the doc but can't find anything.
Cheers,
Tim
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support
Administrator
Joined: January 26 2005
Location: United States
Posts: 1666
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| Posted: April 04 2005 at 11:35am | IP Logged
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Hi Tim,
The VOIP Media Engine you have does not yet support the RFC2976 INFO SIP message extension. The keyword here is "yet" because I think it is being worked on for the next release. I have to verify this however.
Up to this point, we have used either in-band dtmf signaling or SIP NOTIFY events. The last time I checked, Asterisk could use one of the following techniques: inband, info, or rfc2833. Is it possible to have your Asterisk setup generate SIP NOTIFY mesages for its DTMF events? If it can, then you can use that.
For the near term, we will not be supporting DTMF type rfc2833. This however may change depending on user requests.
In the mean time, do me a favor and send me a complete SIP log of Asterisk sending your application INFO SIP messages. Start your app, do whatever you have to do to have asterisk send your app INFO events and then terminate your app. I will get a better feel for what you are trying to do just by looking at the log. Send the log to support 'at' lanscapecorp.com
LanScape Support
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timkelly1980
Intermediate
Joined: February 07 2005
Posts: 25
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| Posted: April 04 2005 at 12:10pm | IP Logged
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Hi.
Here is my exact situation. We are developing outward bound call-centre software, at the moment the users have to listen to the phone ring a lot so we thought it would be nicer for Asterisk to Answer the call straight away and then put background music on while it connects the call. The problem with this however is that we lose the ability to monitor the "call answered" state because at the lanscape end we detect the call as answered when it has not been yet, so I was going to get asterisk to send a DTMF INFO packet when it has established the call over the PSTN and use that info packet as my way of detecting when we have got through to our customer :)
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LanScape Support Forum -> LanScape VOIP Media Engine™ - Technical Support
Topic: INFO msg
