integration of old PSTN lines with cisco Ip phone

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Nov 11th, 2009
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I have CCM 4.1 , 7970 IP phones and one Cisco 4506,one EPBX with analog phones in my network. I want to integrate these so that internally anyone can give a call from analog to digital and vice versa.


My concern is what extra device is required for this integration? or this setup is ok ? (any voice gateway ?)


Thanks.

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paolo bevilacqua Fri, 11/13/2009 - 06:47
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You have to check which interfaces are available on the PBX, in order of preference:


digital E1

digital ISDN BRI

analog E&M

analog FX and FXO (you need both)


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