CEOP or STUN for Nortel 7400 replacment

Our company is seeking competitive solution for replacing the existing WAN
Edge Nortel ATM switches. there will be requirements to implement hardware
or software based solution in order to migrate the inter-site PBXs
communication through IP MPLS WAN connections .The existing WAN of our
network design is a cascaded one , HQ connects to site 1 through STM-1 link,
site 1connects to site 2 through E3 private Microwave ATM link and site 2
connects to site 3 though E3 private Microwave ATM link.Each of these sites
have its own 7440 Passport Nortel Switch series servicing the connections of
Data and Voice, connected to inter-site PBX for voice communications through
E1 connections. Our company have problem that we canot find the better
solution to carry the data and voice through IP MPLS cloud.Some vendors
proposed 7600 and advice us to use Circuit emulation over packet but they
said we may have some problems with Telemetry systems and faxes .Other
vendors proposed to us to use STUN technology but they said we will have a
delay for more than two or three hubs traffic transfer.I need assistance
from any one have such experience or practical implementation.

Regards

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Received on Mon Aug 02 2010 - 07:48:46 ART