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Chapter 4: FXS and FXO Explained
phone receiving the call is the last FXO device in the chain. When it
receives voltage from an FXS device, the phone rings.
VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 600030
