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G.703 vs. G.704 modules

Unanswered Question
Apr 26th, 2006
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Hi:

I need to add an E1-PRI interfase for a Cisco 28xx to support backup data calls through an ISDN cloud.

I´m confused about what module to choose (VWIC-1MFT-E1 (G.704 framed) or VWIC-1MFT-G703 (unframed)).

1) What is the practical difference between both?

2) For VoIP, I normally choose the VWIC-1MFT-E1 module plus PVDMs, when should I use the G.703 module?

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