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Why consider SIP trunking?

Why use SIP trunks?  Thought you’d never ask!

Briefly, some key benefits are…

  • Cost savings
  • Agility, Scalability
  • Simplify, Consolidate and Manage Telecom Resources Efficiently
  • Maintain Business Continuity

Take cost savings for example.  How many circuits do you have connected to your legacy PBX?  Local trunks, a long distance trunk… then you have your Internet and WAN connections perhaps.  Imagine if you could consolidate the local, long distance and Internet or WAN into a single data circuit.  If you wish to add redundancy, which is always a good idea from the standpoint of business continuity, then add for that.  As you consolidate and more efficiently utilize circuits and hardware, reduce overall hardware and all associated costs.  Additionally, reduce or eliminate charges for long distance calls within the US.

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What are SIP trunks anyway?

Good question! Glad you asked!

You may be aware of SIP and its use in VoIP telephony. SIP is an acronym for Session Initiation Protocol which is the protocol used in VoIP calls for call session setup and tear down. SIP trunking is a protocol or method used to provide logical communication paths or call paths for VoIP calls between your PBX and your SIP trunk provider or carrier.

SIP trunking works over your data network, over the public internet or a private WAN connection between your site and your SIP trunk provider.  Essentially, in simple terms, you can take an existing data connection and use an IP connection to connect your PBX to your SIP trunk provider.  It would be somewhat the equivalent of using an PRI connection to connect your PBX to your PSTN provider.  Your SIP trunk provider has a data network with interconnections into the PSTN.  Your SIP trunk provider servers are a gateway to the PSTN.

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