International SIP

A truly global and efficient voice solution for your business.

Connect your business to a  worldwide network using powerful IP voice connections and your existing equipment to improve the way your business works.


Global SIP Connection

The implementation of SIP can reduce or fix operational telephony costs, increase resilience and give you flexibility to scale up or down your line infrastructure instantly.

Furthermore, SIP allows you to connect your PBX to the public network over the internet, allowing your business to make the most of your existing equipment whilst enjoying the benefits of powerful unified communications.

WMX give you end to end voice services with one single overall management view. The transition to International SIP significantly reduces traditional network costs and our business reporting systems can be customised to your organisation; allowing you to view cost and usage in an accurate and timely manner.

International Inbound SIP

With global Inbound SIP trunking from WMX you can receive calls from toll free and local numbers to your PBX or call centre using the internet. You can provision numbers quickly whilst reducing the need for costly ISDN lines.

Using the WMX network helps increase efficiencies and enhance your business applications to support your specific needs. Our worldwide footprint can provide global implementation that provides your business with a local feel in multiple countries.

If you need flexibility by acquiring phone numbers from almost anywhere in the world or you want to make sure your business telephony has high availability and DR capabilities, solutions from WMX global work as an extension of your business.

International Outbound SIP

Your business can benefit from dialling out to international destinations from your office using VOIP technology at a much lower cost to your business than by using traditional ISDN infrastructure. Furthermore, if your business needs to increase or decrease the number of lines you need at short notice, this can be implemented quickly and easily.

In addition, to ensure maximum business continuity in the event of a power or service failure, our SIP trunking service comes with resilient DR.

WMX currently services Europe and North America for Outbound SIP.

international outbound sip from wmx global

Why Choose WMX Global for SIP Trunks?

Boost your business productivity, reduce your costs and scale with ease with our comprehensive global SIP network.

Fully supported network with wmx global

Fully Supported Network

Having developed multiple relationships with Tier 1 carriers across the globe allows WMX to leverage from our partners, meaning international calls are routed over a secure and fully redundant network.

scalability with SIP trunking from wmx global


Should your business need to quickly scale up or down with the number of lines to your business, WMX Global is able to do this quickly and easily, ensuring your business has minimum downtime.

Get SIP trunks for reduction in costs

Reduce Costs

With WMX Global, your business can benefit from low cost calls to over 145 countries as long distance calls are charged at a much improved rate whilst also saving on costly ISDN lines.

one partner one solution for sip trunking from wmx global

One Partner, One Solution

Your business does not need to go through multiple vendors to resolve the issue. WMX Global manages your entire international SIP trunking solution and the connection to our highly secure network.

Other Global Solutions

Buy international phone numbers
International Numbers

We have a vast network of international telephone numbers, covering in excess of 145 countries and 7,500 cities worldwide.

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Buy a managed security service
Managed Security

Unrivalled managed security and support; WMX Global can safeguard your business assets 24/7.

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Buy a hosted phone system
Hosted Phone System

Cloud Hosted PBX systems with enhanced, on demand features with hardware, software, infrastructure and support.

Learn... Learn More

A truly global and efficient voice solution for your business.

Connect your business to a  worldwide network using powerful IP voice connections and your existing equipment to improve the way your business works.



Reduced Call Costs

SIP trunks can deliver cheaper international calls as they are carried out over the IP network rather than the PSTN (Public Switched Telephone Network).



Having a trusted CLI and dedicated IP address ensures that no unauthorised calls can be made via your SIP trunks. As WMX monitors your virtual lines, you can guarantee that any unusual activity will be dealt with as quickly as possible.


Complete Scalability

Global SIP is geographically independent and scalable from 1 to 10,000 users. Adding and removing users is very straight forward and does not require any site visits. Once the SIP trunks are activated, it’s easy to scale up and down as you please – the perfect solution for fast growing or seasonal businesses.


True Resiliency & Business Continuity

SIP traffic from WMX is controlled from a central location, which means calls can be automatically diverted should disaster strike.



SIP lines are much easier to operate, maintain and upgrade. Controlled centrally, if a disaster occurs or staff are unable to make it into work, calls can be diverted at the click of a button.


One Provider

Simplify IT and communications management workload by dealing with one supplier for all countries you operate in and serve.


Business Integration

SIP also allows for business integration for video applications, Computer/Telephony Integration (CTI) and Instant Messenger services like Google + and  Skype for Business. SIP trunking can act as a voice solution and a disaster recovery solution in one.


Future Proof

SIP trunking is provided over a dedicated managed WMX QOS connect and allows for future business integration for video applications, Computer/Telephony Integration (CTI) and Instant.

A truly global and efficient voice solution for your business.

Connect your business to a  worldwide network using powerful IP voice connections and your existing equipment to improve the way your business works.


Why Choose WMX Global

Global reach from WMX Global

Global Reach

Whether you need to reach new customers or connect new offices, we’ll get you there. Our products and services reach over 145 countries and over 7,500 cities around the world. Businesses across the globe benefit from the products and services our network supports.

One supplier one currency and one bill from WMX Global

One global provider, one currency, one bill

For many of our customers we are a single, dedicated supplier of data, voice and managed services for their entire business. You get to deal with one contact at one business and pay a bill in a currency you understand.

Dedicated Account Management

Dedicated Account Management

All WMX customers are allocated a dedicated account manager, responsible for the success of the services we provide to your business. We also provide you with named contacts in service and support so you have direct access to key team members with knowledge of your business and the services and support you require.

Diverse and resilient network from WMX Global

Diverse and Resilient Network

We own and operate a core network which leverages multiple data centres to increase resiliency and reach; we also interconnect with all major tier 1 carriers. Our network operates to the highest industry standards in performance, latency and security.

Technology consolidation experts at WMX Global

Technology Consolidation Experts

We help businesses work smarter by connecting and consolidating their global communications infrastructure. Throughout the process we optimise voice and data performance while minimising the total cost of technology ownership.

Complete suite of products and services from WMX Global

Complete Suite of Products & Services

We are a full global service enterprise provider offering; cloud, connectivity, managed IT, voice and data centre services to businesses around the world. Whatever your requirements, we make these products work together in order to deliver long term value to your business.

Knowledge and experience from WMX Global

Knowledge and Experience

You are in safe hands. As a team, we have decades of experience in telecoms, data, hosting and everything in between.

Award winning support from WMX Global

Award Winning Support

Our award winning technical support team take pride in helping customers reach a resolution as quickly as possible. All of our engineers are trained to ‘3rd line standards’ meaning technical enquiries are dealt with effectively and efficiently by knowledgeable staff.

Head Office

1st Floor Heywood House, Ridgeway Street, Douglas, Isle of Man, IM1 1EW

Email Address:

VAT No. 003272231

Company No. 008112V

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