Enterprise Proactive testing of your
global telecommunications channels

Your inbound contact numbers, outbound calling, fax, and SMS services are all critical to how your global customers see your brand. Yet it is not entirely possible to know whether those services are working correctly from all geographies.

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Solutions for enterprise Choose the product that’s right for your organisation


Voice Assure

Proactive monitoring of audio quality and connectivity.

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Fax Assure

Verification of connection, fax-tone and handshake.

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SMS Assure

Confirming delivery and receipt in SMS applications.

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Solutions tuned to your needs

The Spearline network has physical telephony servers in the markets you need, connected to the carrier networks your customers use.  Servers are connected to fixed-line ISDN/SIP as well as GSM networks, which allow us to dial your local contact numbers in-country, replicating your customers' experience from wherever they are in the world.



Voice Assure TESTING Automated in-country testing
of high volumes of global
contact numbers

Set your own testing cycles, completely customised
to your business needs.



FIRST TO KNOW Real-time alerts on
customer impacting issues

Our proactive alerts mean that you’re the first to know
about customer-impacting issues – so you can get to
work on fixing issues quickly with the data you need for




PROTECT YOUR IMAGE Gain information allowing you
to take action to protect your
brand image

With a physical presence in 71 countries - the only solution replicating your customer’s experience with such large coverage.




Test for connection success or failure, which could mean the difference between a delighted customer or a lost customer.

Audio Quality

Replicate your customers’ experience and measure audio quality with objective, industry standards.

Post Dial Delay

Measure the delay between the start of the call and when it’s answered, accurately, highlighting any quality issues.

Touch Tone

Check if DTMF (touch tones) are failing for your customers.


Replicate the customer call flow and quantify the amount of latency your customers experience.

Performance Benchmarking

Set and achieve quality goals based on historical performance and on benchmarked indicators.

Read more about our test types here

Rosie Scott

"Spearline provides first rate audio quality testing tools that allow us to enhance our customers' experience. I cannot overstate the value of their solutions."

Rosie Scott, PGI Director of Vendor Management - EMEA PGI

Gregor Rennie

"The platform has been exceptional in our ability to drive carrier improvements, customer fault investigations and alerting of any country issues."

Gregor Rennie , EMEA Carrier Account Manager, Intrado

Pierre-Baptiste Béchu

"Spearline gave us better visibility on the quality of our service, and allowed us to detect and solve issues much faster. It contributed to improving call quality and customer satisfaction."

Pierre-Baptiste Béchu, Tech Co-Founder Aircall

Stamatios Papadatos

"Spearline has been a tremendous partner, enabling us to provide more proactive early detection services, associated with international line incidents that enable a more proactive approach to resolving customer line quality issues in various countries throughout the world. "

Stamatios Papadatos, CCS NAO IT Telecom Lead Architect Atos

Helen Scahill

"Spearline monitoring enables us to proactively manage the service availability of our globally dispersed customer contact numbers. In the event of a service interruption, Spearline's alerts notify our regional NOC teams in real time, with call detail records included to expedite the mean time to restore service. "

Helen Scahill, Intel Service Delivery Manager  Intel

Maximilian May

"Since we started working with Spearline we have found them to be a tremendous partner. Undergoing several large migration and restructuring projects for our communication systems, we utilized Spearline’s automated monitoring features to transform from a mostly reactive approach to a proactive one."

Maximilian May, Technical Lead, Telephony TeamViewer

Enterprise Learn more

Spearline supports enterprises globally as they pursue excellence in customer experience and grow their businesses.

Proactively monitor your numbers across the US and Canada with Voice Assure Interstate

Proactively monitor your numbers across the US and Canada with Voice Assure Interstate

Oct 20, 2020

Replicate a call from one state to another state, to test for connectivity and audio quality.


Spearline Podcast | Season 2 Episode 5: The impact of Fax and SMS on businesses with Michel Colaci

Spearline Podcast | Season 2 Episode 5: The impact of Fax and SMS on businesses with Michel Colaci

Oct 14, 2020

In this episode of the Spearline Podcast, Kees and Josh are joined by the owner and founder of Screenzest Michel Colaci


How Voice Assure provides exceptional customer experience

How Voice Assure provides exceptional customer experience

Oct 13, 2020

An interview with Spearline Software Engineer Brian Mullins.


How to identify high latency which is affecting your Customers Experience

How to identify high latency which is affecting your Customers Experience

Oct 08, 2020

Spearline latency test allows you to proactively measure any delay, and detect where there are variations over time.


Happy CX Day 2020!

Happy CX Day 2020!

Oct 06, 2020

CX Day celebrates the professionals and companies that make great customer experiences happen.


Ready to get started?

In-country testing for landlines and mobile with no installation.

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