hi you can use the Vmux from RAD www.rad.com. Its all depends which compression and what interface you want.contact me on pushkarbhatkoti@yahoo.comcheers..
Hi Guys,You should use the RAD IMAXI-E1. It works on the Bonding protocol and automatically clubb ur bandwidth.u need to place 2 Imaxi -E1 in both side. It is basically inverse multiplexures. Cisco does the same.It will combine ur 4 E1s to ethernet 1...