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FXO ports are often used by people or businesses that want to have an analog backup in case of a power outage.

How many FXS ports you need depends on how many devices you want to connect to the IP phone adapter.įXO (Foreign Exchange Office) ports are for the analog phone lines themselves. Internet phone adapters typically have either all FXS ports or a mixture of FXS and FXO ports.įXS (Foreign Exchange Subscriber) ports are for the actual analog phones and fax machines, the subscribers to the service. There are two types of analog ports on a VoIP phone adapter: FXS and FXO. To select the right VoIP ATA for your particular needs, you will need to know a little bit about your current (or planned) VoIP phone technology. But with so many options, how do you make the right decision? If you’re eager to save money on your home or business phone system, VoIP phone adapters are the prudent choice. MagicJack is also a type of VoIP adapter. Some common brands of phone VoIP adapters: In this case, a VoIP phone adapter converts an analog signal (what your typical phone currently uses) to a digital signal (what your VoIP system uses).

What is a VoIP phone adapter?Ī VoIP phone adapter converts signals. VoIP phone adapters will work with SIP (Session Initiation Protocol), hosted PBX providers, or even a PBX (Private Branch Exchange). VoIP phone adapters can help you embrace the added benefits of VoIP systems while keeping your existing phones. You already have phone sets (perhaps several, if you’re a small business). If you are considering a VoIP system for your home or office, make sure you remember your phone hardware. Compare the best VoIP ATA adapters below. ATA is short for Analog Telephone Adapter, and the main function of an ATA is to let you make VoIP calls using a traditional analog telephone. A VoIP phone adapter, also known as an ATA adapter, can help you lower the cost of VoIP (Voice Over Internet Protocol).