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Can I Connect an IP Phone to an Analog PBX?

Our tech support team at VoIP Supply offers great pre- and post-sales support plus provisioning, consultations, configuration, and installation help. We get a lot of VoIP hardware and software questions and would like to share the solutions with everyone.

In previous Mom’s calling Q&A series, we have discussed: Fanvil X6 IP Phone Failed to Transfer Calls via PBXs. Today, we have more new questions and answers from VoIP users just like you.

Can I Connect an IP Phone to an Analog PBX?

Q: We have an old digital NEC IP PBX. We are trying to find a way to allow remote users to use IP phones to connect to our phone system as analog extensions. Can I connect an IP phone to an Analog PBX through an FXO gateway? Is there a device that allows IP phones to connect to it, and then hand them off to the phone system as an analog extension?

A: Unfortunately, no. You will need SIP Service to run voice over IP and SIP Service is provided from a provider, not a device. An FXO gateway is for IP Service coming into an analog device. an FXS gateway is for an IP PBX to connect to an Analog endpoint.

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Ying-Hui Chen

Ying-Hui ( Evy), has been working at VoIP Supply since November 2015. She is currently working in the Marketing Department helping with market research, SEO analysis/ tracking, email marketing and blogs. Connect with her on LinkedIn.