Re: VoIP
Should work with any standard 'phone (cordless or wired), and with most VoIP providers (that use the standard SIP protocol), but not Skype which uses a proprietary protocol. When you sign up with your chosen provider they will provide you with the details you need to configure the adapter (which is done via a web interface).
Sometimes if you buy an adapter direct from the provider it comes pre-configured for your account. In some cases it's locked down so you can't then reconfigure it for a different provider.
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