If you already have a PBX or Asterisk server you would like to use, SIP trunking allows you to access Layer Four’s Tier 1 VoIP network for your calling without using our Hosted PBX services.

SIP Trunks are a versatile and cost effective solution that delivers the benefits and cost savings of VoIP, enables you to retain your existing IP PBX system and empowers you to leverage your existing Internet connection for both voice and data. Layer Four provides a number of flexible SIP Trunking products designed to accommodate your unique application including bundled, flat-rate, metered and inbound only retail products and flat-rate and rate-deck wholesale products.

To get started with a Layer Four SIP trunk, Signup online with a minimum $5 deposit and start calling immediately.