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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Chapter 8. Managing Dialogs
Initially, most SIP proxies were only transaction-aware—they had only the information regarding requests and replies. However, in many cases, this was a problem for solution developers. If we cannot control a dialog, it is not even possible to know how many simultaneous calls the system is handling. To supersede these limitations, we have the dialog module. This module is extremely important in applications such as prepaid billing, calling cards, and limiting of simultaneous calls per user, gateway, and route. Whenever you need to count, disconnect, and display active calls, you should use this module. In this chapter, we will cover the following topics:
- Enabling the dialog module
- Creating a dialog
- Describing and controlling ...
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