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Jalal
Vetran
Joined: April 24 2006
Location: Iran
Posts: 188
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| Posted: June 21 2007 at 6:08am | IP Logged
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Dear Lanscape,
Sip INFO message is a special SIP message described in RFC 2976. We are currently forced to support this message for Out-Band DTMF and Hook-Flash while using SPA-3000 Voice Gateway.
I know we can receive and send these type of messages manually with your current API like SendUdpDatagramUsingSipPort but trust me working with this function is very hard. Because unfortunately you don't offer some information such as Call-ID , Branch, Tag in your API and so we should parse complete SIP messages to extract these parameters.
Providing a API function like below would be very useful to send SIP Info messages.
SendSIPInfoMessage(char * ContentType, int ContentLength, char * data)
See http://www.voip-info.org/wiki-SIP+Info+DTMF for some more information.
Regards,
Jalal
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support
Administrator
Joined: January 26 2005
Location: United States
Posts: 1666
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| Posted: June 21 2007 at 12:58pm | IP Logged
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Hi Jalal,
Your post is good info. It is good when user’s request additions to the API to make life easier. That’s what it’s all about.
Try to look on the bright side, even if today’s capability is clunky or “hard” for a particular application, at least you have ways to accomplish the task. :)
So to be clear, what you want is a way to send INFO SIP messages within a call dialog – right? In this case then yes, the media engine could handle all the details as per your suggested new API.
Support
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LanScape Support Forum -> LanScape VOIP Media Engine™
Topic: SIP Info (RFC2976) Support
