What is SIP Trunking ?

With most phone companies (LEC’s & CLECs), customers typically pay on a per-line basis for physical phone lines that originate in their central office. These phone lines are costly. Customers invest a lot when they initially deploy them, and it’s very expensive to add more as they grow.

With SIP Trunking, phone calls are routed through the Internet. And this makes all the difference. 

With SIP Trunking customers can:

  • Consolidate voice and data traffic
  • No longer need to pay for expensive phone lines from the phone company
  • Cut costs up to 50 percent
  • No loss in capacity to make and receive calls
  • No loss in the quality of calls
  • Improve the reliability of the system by mitigating threat of local outages

Most newer phone systems are compatible with SIP Trunking with no extra equipment.

Older phone systems may require a device called a VoIP Gateway to translate analog or digital calls into VoIP calls.

In all cases, SIP Trunking brings new life to an existing phone system or provides the savings catalyst to purchase a new phone system, while cutting operational costs and preserving capital.

Best of all, with SIP Trunking, customers can say goodbye to the old fashioned phone company forever.


ECS is an authorized Intermedia reseller located in Seattle, WA & Portland, OR.

ECS provides local technicians for on-site work installing and servicing a variety of voice/data equipment, ie; Avaya Aura Servers, Gateways, Messaging, Telephones, Firewalls, Ethernet Switches, Low Voltage Cabling, WiFi, CCTV, POS, Paging, etc. 

ECS provides services in the states of Washington & Oregon, primarily in the greater Seattle & Portland areas.

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