SIP Trunking

Voice services with increased quality and reduced cost

SIP trunking offers businesses a more flexible, resilient, scalable and cost-efficient way to connect PBXs to the voice network compared to using ISDN. IntaCloud’s SIP trunking service does more than just provide basic voice. Using our advanced Voice Services Platform and resilient core Network we provide high quality voice calls and additional resilience, load balancing, call queuing and disaster recovery features.

  1. High quality voice calls with flexibility, resilience and scalability.
  2. Disaster Recovery (DR) Call Routing.
  3. DDI Divert.
  4. Resilient SIP Channel.
  5. Call Queueing.
  6. Fax to Email.

What is SIP Trunking?

  • SIP stands for Session Initiation Protocol (SIP) which is a signalling communications protocol, widely used for controlling multimedia communication sessions such as voice and video calls over Internet Protocol (IP) networks.
  • SIP is supported by a wide range of PBXs and is an alternative to traditional ISDN links.
  • SIP Trunking is IntaCloud’s product to offer SIP connectivity to businesses with PBXs.

Benefits summary

  • High quality voice calls – vital for any voice service, voice quality is maintained by an advanced core network that eliminates the effects of jitter, latency and packet.
  • Flexible – Can quickly scale up and down to meet your changing business requirements.
  • Controllable – Calls can be quickly re-routed when required, enabling your business to react to events.
  • Powerful – Can be combined with additional resilience, load balancing, call queuing and disaster recovery features.
  • Economic – SIP trunks have a much lower cost per channel compared to typical ISDN30 links.
  • Resilient – SIP calls benefit from a resilient core network so they’re always there for you.

It is possible to add following features not available with ‘dial-tone only’ SIP Trunking as follows:

  • DDI Divert automatically diverts incoming calls to individual DDI (Direct Dial In) numbers to alternative destinations in the event of PBX or circuit failure or overflow.
  • Resilient SIP Channel provides two separate connections from the Voice Services Platform to two PBXs in the same cluster and distributes inbound calls to the PBXs using ‘round robin’ or ‘active / standby’ rules.
  • Call Queueing uses an Auto-Attendant function on the Voice Services Platform to automatically greet, queue and direct calls to an appropriate destination based on user input.

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