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SIP Trunking NZ

SIP Trunking

SIP stands for Session Initiation Protocol and represents the use of VoIP to allow the connection of a PBX to the Internet.

The Internet basically replaces the traditional telephone line, allowing a SIP Trunk user to communicate with telephone subscribers that use fixed or mobile telephone service. AstraQom uses the SIP Trunks to deliver the communications initiated from your PBX to the outside networks, as well as the incoming communications to your PBX.

We can offer significant cost savings for enterprises, eliminating the need for local PSTN gateways, costly ISDN BRIs (Basic Rate Interfaces) or PRIs (Primary Rate Interfaces) especially for businesses who have invested in building an internal IT infrastructure struggling between migrating to new solutions and renouncing some of the advanced features by keeping their systems in place.

As a SIP Provider, we are able to enhance the capabilities of your software or device by providing a complete solution for all internal and external communications. Whether you have a Hosted PBX or traditional PBX, a calling card service or a call centre solution, we can help you make the most of your IP investment with a SIP Trunk, which is a combined solution of DIDs and bi-directional channels scaled perfectly for your needs.

Contact us today to talk to a SIP Trunking Advisor

Contact an IP PBX Specialist Advisor09-801-0999

Cost-Effective SIP Provider

Choose Us?

Complete SIP Trunks

Online Reporting, Billing and Account Management tools.

High Quality SIP Service

We provide multi-language, high quality customer care.

SIP Providers

Multi-node national and international network redundancy.


New Zealand based company and part of an international telephone group.

Full SIP Service

Dialer Support.

SIP Trunk Benefits

Unlimited Free Inbound calls.

Reliable SIP Calling

Reliable, uninterrupted level of service.

Guaranteed SIP Service

Uptime of 99.98% guaranteed through SLA.

IP PBX for multiple locations

Great for both a single office and multiple locations.

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Whitecheck1 Local Number included

WhitecheckFixed minutes at $0.03/minute

WhitecheckMobile minutes at $0.07/minute

WhitecheckAdditional Local Number $5.00/month

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*All prices are exclusive of GST



WhitecheckLocal Number included

Whitecheck1000 minutes included

WhitecheckAdditional Fixed minutes at $0.025/minute

WhitecheckAdditional Mobile minutes at $0.06/minute

WhitecheckAdditional Local Number: $5.00/month

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SIP Service

Why you need
a SIP Service

SIP Trunks are vital to connect the users of your PBX or Unified Communications solution to public telephone networks.

A SIP Trunk represents the phone service that supports your internal infrastructure and offers the necessary channels (phone lines) and DIDs (phone numbers) for your business to dial out and be reached.

Probably the most important aspect of deploying a SIP Trunk solution is the channel and DID distribution. SIP Calling offers the possibility of combining these 2 elements according to your business needs, making it the most versatile and scalable solution available on the market.

You can activate any number of DIDs with any number of channels to build your ideal SIP circuit.

SIP Phone Service

VoIP Trunks SIP NZ
2Bay of Plenty
5Hawke's Bay
12Tasman Bay
Local SIP Provider
Global SIP Trunk Providers

Click on the state to see in which cities our SIP services are available:

  • Auckland
  • Bay of Plenty
  • Canterbury
  • Gisborne
  • Hawke's Bay
  • Manawatu-Wanganui
  • Marlborough
  • Northland
  • Otago
  • Southland
  • Taranaki
  • Tasman Bay
  • Waikato
  • Wellington

See the countries where our SIP service is available:

  • Argentina
  • Australia
  • Austria
  • Bahrain
  • Belgium
  • Brazil
  • Bulgaria
  • Canada
  • Chile
  • China
  • Colombia
  • Croatia
  • Cyprus
  • Czech Republic
  • Denmark
  • Dominican Republic
  • El Salvador
  • Estonia
  • Finland
  • France
  • Georgia
  • Germany
  • Greece
  • Hong Kong
  • Hungary
  • Ireland
  • Israel
  • Italy
  • Japan
  • Latvia
  • Lithuania
  • Luxembourg
  • Malaysia
  • Malta
  • Mexico
  • Netherlands
  • New Zealand
  • Norway
  • Panama
  • Peru
  • Poland
  • Portugal
  • Puerto Rico
  • Romania
  • Singapore
  • Slovakia
  • South Africa
  • South Korea
  • Spain
  • Sweden
  • Switzerland
  • Turkey
  • United Kingdom
  • United States

VoIP SIP Service Features and Capabilities

Aggregated IP PBX

Aggregated SIP Trunking: Our aggregated trunking capability enables you to allocate a number of channels that will be distributed dynamically wherever there is a need for capacity, eliminating the need for dedicated trunks. For example, if you have 5 DIDs and 10 channels, if 3 calls are coming to one of your numbers, 3 of your channels will be allocated to allow the connection to that number, leaving other 7 channels available for further incoming or outgoing calls on your other numbers.

Bi-directional SIP Trunks

SIP Trunks with Bi-directional connectivity: AstraQom offers both IP to PSTN connectivity and connects to any type of compatible PBX or Unified Communications solution.

VoIP SIP Call Termination

Call termination: SIP Calling includes unlimited free incoming calls and offers national and international termination using the AstraQom network.

Protocols Supported by SIP Trunking

Protocols and Codecs: AstraQom’s SIP Trunking supports SIP and H.323 protocols, T.38 and G.711 codecs.

Caller ID features SIP Service

Caller ID features supported: SIP Trunk features include CLID (calling line identification), DNIS (Dialed Number Identification Service) and CNAM (Calling Name Delivery).

SIP Trunks for Call Centers

Dialer support: Call Centres with automated dialing systems benefit from a SIP Calling plan designed for their specific needs.

Compatible VoIP SIP

Virtual Phone Numbers: The SIP service is compatible with all New Zealand and International numbers available.

Benefits of SIP Trunks
SIP Trunk Benefits

With its advanced features and capabilities, a SIP Trunk allows your business to make the most of its telecommunications infrastructure, integrating New Zealand and International numbers with voice, fax, auto-dialing softwares, and enhanced voicemail platforms in one efficient solution, while eliminating the need and costs of high maintenance connections.

WhitecheckCreate your own custom solution by combining any type and number of DIDs with any number of channels.

WhitecheckDecrease communication and IT costs by up to 50%.

WhitecheckMaximise the return on your IP infrastructure investment.

WhitecheckFacilitate intra-office communication while integrating other locations seamlessly.

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