January 2016
Intermediate to advanced
384 pages
8h 6m
English
book
Building Telephony Systems with OpenSIPS - Second Edition
by Flavio E. Goncalves, Flavio E Goncalves, Bogdan-Andrei Iancu
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Creating a dialog
To create a dialog, you have to call the create_dialog() function in the initial request. You don't need to call this function again in sequential requests. The function has three parameters:
Psends periodical in-dialog pings to the caller.psends periodical in-dialog pings to the callee.Bdisconnects the call sending a BYE in both directions when the dialog times out. We call this feature BYE on timeout.
You should be careful while using in-dialog pings. This feature works fine with well-behaved end devices such as IP phones, analog terminal adapters, and gateways. However, avoid it when using clients such as dialers or softswitches that possibly will not answer an OPTIONS request. In this case, if the server does not receive ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.