Social - Clear

Company Slogan


Social - Clear

IP Voice

Over the Wire provides SIP based IP voice solutions that give you high quality, high availability, voice termination at a fraction of the cost of traditional telephony.

Our voice platform supports a range of client usage scenarios, from IP PBXs to Call Centre Diallers, for both inbound and outbound calling.

Customers have the option of utilising a private connection to their PBX to ensure that both the clarity and consistency of the transmissions are maintained.

About Over the Wire's Voice Solutions

Key Features of an Over the Wire Voice Solution

  • Qualified technical support from voice engineers
  • Private connections available for network reliability
  • Business grade communications
  • Robust infrastructure
  • HD voice capable
  • Wide Range of PBX support
  • Microsoft Lync support

Voice Quality

HD voice qualityEarly VoIP adopters reported poor call quality and drop outs, often caused by Internet congestion and poor network management. We’ve adapted our system to maintain control over the flow of voice traffic from a user’s handset to the PSTN, using Quality of Service technology and our own data networks.

Where a site requires a connection over the Internet for voice, we can pre-qualify and guide you to ensure a minimum ISDN level of voice quality can be achieved. This means that your calls will get through every time.

Legacy PBX Support

IP PBX SupportWe can provide a gateway to interface with your existing legacy PBX so you get full call saving rates, with minimum additional investment and shorter installation time.

Lync Support

Microsoft Lync SupportOur hosted Lync solution supports direct SIP trunking with Microsoft Lync servers, allowing for greenfield deployments. You can also route outbound calls from Lync to Over the Wire, saving money while maintaining ISDN for inbound and fall-back services.



Our IP Voice services have been tried and tested with a multitude of vendors, including:

  • Avaya
  • SpliceCom
  • Cisco
  • NEC
  • Asterisk
  • 3CX
  • sipXecs
  • Counterpath
  • Lifesize
  • Linksys

Codec Support

  • G.711 ALAW
  • G.729 A/B
  • G.722 (HD)

On Request

  • G.711 GLAW
  • GSM
  • T.38 Fax*

DTMF Types

  • RFC2833
  • SIP Info

Compliant Dialing Formats

  • E164(617...)
  • ONSN (07...)
  • +E164(+617...)


  • SIP over TCP
  • SIP over UDP

Ordering and Quotes

As a no-nonsense company, and as leading telecommunications experts, we understand the importance of getting things done as easily as possible. Just give our friendly sales staff a call and we will take care of the rest.

Once an order is placed we’ll keep you up to date with each stage of the process so you’ll know exactly when to expect service delivery.

IP Voice services can be provisioned through our online portal. Most services can be provisioned by the next working day.

*Supported in most cases. Applicability of codec support should be individually discussed with your account manager. 

Get a Quote

Get a Quote

This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

Download IP Voice Product Card

Latest News
How to protect yourself from toll fraud

by Henry Wagner
Toll fraud costs the global economy over forty-six billion dollars (US) a year, and has risen by 15 percent since 2011. This article explains the basics of how toll fraud, and PBX hacking work, and what you can do to protect against it.
Five advantages of SIP over ISDN

by Henry Wagner
For those who aren't particularly familiar with the ins-and-outs of SIP and ISDN, the distinctions can be confusing and often outdated. To help clear things up we'll start with the basics and move on from there. SIP or Session Initiation Protocol is an application layer protocol that is based on IP...

More Products