VoIP SIP SDK – Contact Us

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VoIP SIP SDK

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ABTO Software is a company with US sales office and Eastern Europe based development center. Our employees develop, sell, and provide technological support for our VoIP SIP SDK solutions for different platforms including Windows, Android, and iPhone. You can contact us to receive consulting regarding VoIP solutions, request more information about our products or estimation for a custom software solution.

If you have any questions or requests regarding the softphone solutions, please contact our Customer Service Representative by calling at 1-773-800-2875, sending us e-mail to support@voipsipsdk.com or using our contact form.

In order to communicate regarding purchasing our software solution, please send us e-mail to sales@voipsipsdk.com.

Please check our FAQ and blog before sending technical questions. We regularly check our e-mail so you will receive our reply within 24 hours.

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Client Testimonials

"ABTO SIP SDK has provided Xenex with a robust SIP toolkit that is enabling us to provide extra information to our staff that out VoIP PBX is not able to. It is very easy to use, something that can't be said for other toolkits, and is giving us lots of other ideas on how to use it to benefit both our staff and our customers. Thanks ABTO SIP SDK for your Internet phone sdk!"

/Nick Denker, Technical Director, Xenex Technologies Limited, UK /

Some of our customers

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