I am unable to make or receive calls as there is an engaged tone on my phone.

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Check our How To guides to confirm you have configured the SIP device correctly, or log a support request with our support team via the Help Centre.

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This article is intended as a guide only and should be used in conjunction with any manufacturer or developer instructions available. The information in this article was correct at the time that the article was last updated. Differing product versions may cause variations to the instructions given and may also have an impact on any visual aid provided. Telappliant reserve the right to make any modifications without prior notification.