Update testimonials.rst

source/additional_information/testimonials.rst

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+*SureVoIP have been using FusionPBX since 2010. SureVoIP sponsored the first versions of multi-tenant domains and hot desking. SureVoIP sponsors and contributs fixes and features when possible.* 
 
+*SureVoIP uses FusionPBX in combination with all the best of breed Open Source software projects and protocols. Namely, PostgreSQL with BDR replication, memcached, OpenSIPS, FreeSWITCH, NGINX, GlusterFS, Nagios, OpenLDAP, GitLab, PowerDNS, Grafana, InfluxDB, ElasticSearch, Logstash, Ansible, MQTT, ZeroMQ, Jenkins CI, GitLab, WebRTC and XMPP. This helps the platform stay available 24/7 across two UK datacentres (https://www.surevoip.co.uk/about/our-network) serving more than 700 multi-tenant domains. With its powerful API, SureVoIP integrates Cloud PBX features with many 3rd party applications.*
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+*Because of FusionPBX's highly configurable nature, responsive support team and sane design SureVoIP have been able to win many large customers because proprietry systems are so rigid and slow to innovate. We have been proud to support and deploy FusionPBX for 7 years.*
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+**-SureVoIP**
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+*Winner of the Best Business ITSP (Medium Enterprise) 2016!*
+http://www.surevoip.co.uk/2016-best-provider
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 We would love to hear from you!  Please reach out to us at http://fusionpbx.com/support.php if you would like to be featured on this page.