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SIP Trunking

SIP Trunks

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 lines to deliver the communications initiated from your PBX to the outside networks, as well as the incoming communications to your PBX.

AstraQom UK's SIP Trunk 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 Trunk provider, AstraQom is able to enhance the capabilities of your software or device by providing a complete SIP Phone solution for all internal and external communications.

Whether you have a traditional or IP PBX, a calling card service or a call centre solution, we can help you make the most of your IP investment with a combined solution of DID Number and bi-directional channels scaled perfectly for your needs.

Contact us today to talk to a SIP Service Specialist Advisor

Contact a SIP Service Specialist Advisor0800-048-8003

Cost-Effective SIP Provider

Why
Choose Us?

Complete SIP VoIP

Online Reporting, Billing and Account Management tools.

High Quality SIP Service

We provide high quality customer care.

SIP Providers

Multi-node national and international network redundancy.

SIP Trunking

UK based company and part of an international telephone group.

Full SIP Service

Dialer Support.

SIP Trunk Benefits

Unlimited Free Inbound SIP calls.

Reliable SIP Provider

Reliable, uninterrupted level of service.

Guaranteed SIP Service

Uptime of 99.98% guaranteed through SLA.

SIP Trunks for multiple locations

Great for both a single office and multiple locations.

SIP VoIP Rates

Pay-as-you-go

£6.99/month

Whitecheck1 Geographical Number Included

WhitecheckUK additional minutes at: £0.03/minute

WhitecheckAdditional numbers: £3.00/month

SIP VoIP Cost

UK 1000

£9.99/month

Whitecheck1 Geographical Number Included

Whitecheck1000 landline minutes

WhitecheckUK additional minutes at: £0.03/minute/month

WhitecheckAdditional numbers: £3.00/month

SIP VoIP Rates

UK Mixed

£14.99/month

Whitecheck1 Geographical Number Included

Whitecheck600 landline minutes

Whitecheck600 mobile minutes

WhitecheckUK additional minutes at: £0.03/minute

WhitecheckAdditional numbers: £3.00/month

SIP VoIP Cost

*All prices are exclusive of VAT

Call-Centre

£24.99/month

Whitecheck1 Geographical Number Included

Whitecheck500 landline minutes

Whitecheck500 mobile minutes

WhitecheckUK additional minutes at: £0.03/minute

WhitecheckAdditional numbers: £3.00/month

SIP Trunking

Why you need
SIP Trunking

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

SIP lines represent the service that supports your internal infrastructure and offers the necessary channels (phone lines) and DID Numbers (virtual phone numbers) for your business to dial out and be reached.

Probably the most important aspect of deploying a VoIP SIP solution is the channel and DID Number distribution. AstraQom's UK SIP Trunk 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 DID Number with any number of SIP channels to build your ideal VoIP solution.

SIP VoIP Features and Capabilities

Aggregated SIP Trunk

Aggregated SIP Trunk
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 DID Numbers 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 lines
Bi-directional SIP Trunk

AstraQom offers both IP to PSTN connectivity and connects to any type of compatible PBX or Unified Communications solution.

VoIP SIP Call Termination
SIP Calls

The service 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 Trunks support SIP and H.323 protocols, T.38 and G.711 codecs.

Caller ID features SIP Service
Caller ID features

Supported VoIP SIP Trunk features include CLID (calling line identification), DNIS (Dialed Number Identification Service) and CNAM (Calling Name Delivery).

SIP lines for Call Centers
Dialer support

Call Centres with automated dialing systems benefit from a SIP Trunking plan designed for their specific needs.

Compatible VoIP SIP
VoIP Numbers

The SIP service is compatible with all UK and International numbers available.

SIP Phone Service Availability

Hosted PBX Solutions Cloud PBX
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Local SIP provider
Global SIP Trunks Providers

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

  • Aberdeenshire
  • Angus
  • Antrim and Newtownabbey
  • Ards and North Down
  • Argyll and Bute
  • Armagh, Banbridge and Craigavon
  • Bedford
  • Bedfordshire
  • Berkshire
  • Buckinghamshire
  • Cambridgeshire
  • Carmarthenshire
  • Causeway Coast and Glens
  • Ceredigion
  • Cheshire
  • City of Dundee
  • City of Edinburgh
  • City of Glasgow
  • Clackmannanshire
  • Conwy
  • Cornwall
  • Cumbria
  • Denbighshire
  • Derby
  • Derbyshire
  • Derry and Strabane
  • Devon
  • Dorset
  • Dumbarton
  • Dumfries & Galloway
  • Dungannon and South Tyrone
  • Durham
  • East Ayrshire
  • East Lothian
  • East Riding of Yorkshire
  • East Sussex
  • Essex
  • Falkirk
  • Fermanagh and Omagh
  • Fife
  • Firth of Clyde
  • Flintshire
  • Gloucestershire
  • Greater London
  • Gwynedd
  • Hampshire
  • Hebrides
  • Herefordshire
  • Highland
  • Inner Hebrides
  • Inverclyde
  • Isle of Anglesey
  • Isle of Bute
  • Kent
  • Lanark
  • Lancashire
  • Leeds
  • Leicestershire
  • Lincolnshire
  • Lisburn and Castlereagh
  • Merseyside
  • Mid and East Antrim
  • Midlothianm
  • Mid-Ulster
  • Monmouthshire
  • Moray
  • Newry, Mourne and Down
  • Norfolk
  • North Ayrshire
  • North Lanarkshire
  • North Yorkshire
  • Northamptonshire
  • Northumberland
  • Nottinghamshire
  • Orkney Islands
  • Outer Hebrides
  • Oxfordshire
  • Pembrokeshire
  • Perth and Kinross
  • Powys
  • Renfrewshire
  • Rhondda Cynon Taf
  • Rutland
  • Shetland Islands
  • Shropshire
  • Somerset
  • South Ayrshire

See the countries where our Virtual PBX 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
Benefits of SIP Trunks
Benefits of SIP Lines

With its advanced features and capabilities, the SIP service allows your business to make the most of its telecommunications infrastructure, integrating UK 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 SIP VoIP solution by combining any type and any quantity of DID Numbers 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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