the difference is the actual speed you get out of the line. A full E1 (2048kbps) on the VWIC-2MFT-E1 gets you actually only 1984kbps, because the clocking is done by the provider. The VWIC-2MFT-G703 allows you to use the full 2048kbps, but you need to set up the clocking yourself. So basiclly, your provider would set you up with a full E1 so-called unstructured G.703, and you could use your own equipment all along the entire circuit (including CSU/DSU) without depending on any service from the provider.
You might want to have a look at the document below, it explains the characteristics of G.703:
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.