Panoramisk / The VoIP druid 

Registering a client in the SIP model is not mandatory, a session can be initiated with a peer without requiring a lookup in the SIP directory. But why is this method so important and how does it work? This article explains what is a registration in the SIP world and how it works with Asterisk.
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Automatic network configuration of IP phones is a mandatory feature to any enterprise IP telephony installation. Even if all phones have an embedded web server, allowing its configuration, doing this on dozens or hundreds of phones will be cumbersome and unproductive.

Polycom is part of the mature IP telephony manufacturers and their automatic configuration is really rich and allows configuration setup, firmware upgrade and log collection. This article shows basic samples in order to correctly start in IP phone configuration.
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