We have 2 nos of 2811 router and 2 nos of CAT3750E. Can it be done if I want to link 2 Pbx and also a Data Network in the same E1. If yes what type of interface I must buy. Eg :

Pbx--------2811---E1---2811-----Pbx

*both 3750E connected to ethernet port 2811 for data network.

I think you had asked this question already, before you was complaing that it was not working, now you want to know which interfaces to buy ???

Actually, we've installed the VWIC-1MFT-E1 & WIC-2A card but failed. I just want the comfirmation which interface card is the best to link pbx and LAN. If HW is the problem then we can buy a new one.

hi,

you might want to get the e&m card for connecting to the pbx system.

http://www.cisco.com/en/US/solutions/collateral/ns340/ns517/ns477/ns296/data_sheet_c78_464185.pdf