Out-of-band dtmf, Configuring the ip phones – Aastra Telecom SIP 57I User Manual

Page 191

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Out-of-band dtmf, Configuring the ip phones | Aastra Telecom SIP 57I User Manual | Page 191 / 818 Out-of-band dtmf, Configuring the ip phones | Aastra Telecom SIP 57I User Manual | Page 191 / 818
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This manual is related to the following products:

SIP 53I, SIP 55I, SIP 57I CT

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