I am designing an IP telephony solution for 500 user, the problem I am facing now is: my costumer has 70 CO line and 2 E1 DID and 64 analog lines for fax and analog phones, this will make us buy a huge voice gateway.
OR we can use an ASCOM UMUX multiplexer to multiplex the CO Lines and the analog lines to a Digital E1 and these E1 will be feed to the Network module NM-HDV-30 Channel that will be installed in the voice gateway VG200.
Knowing that this will be lease in price and will reduce in space
Please advice back.