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SIP-an Introduction

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SIP-an Introduction

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Session Initiation Protocol (SIP) is used to initiate, maintain and terminate multimedia sessions between different parties. These sessions usually consist of audio, but sometimes they also include video. SIP is the standard protocol used in Voice over IP (VoIP) applications and unified communication platforms. Setting up a SIP system can be easy. However, in the case of complicated network topologies or when security requirements and extra call handling functionality is required, SIP server and NAT traversal techniques need to be used, requiring more technical understanding on the part of the installer or technician.

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