Common use of Network Architecture Clause in Contracts

Network Architecture. Network diagrams need to be conformed to the agreed upon Clearwire - BCE Nexxia architectures. The consumer VoIP application is based on the Nortel MCS 5200/CS2K platform. There are two types of sites deployed - a "main site" and a "POP". Main sites (location to be confirmed by BCE Nexxia) have the MCS/CS2K server complex, several PSTN gateways, multimedia servers to support offerings such as voicemail and conferencing as well as voice adapter provisioning servers. Main sites are fully redundant from a network perspective and BCE Nexxia would work to enable fail-over functionality between the Main Sites (with delivery timeframe updates to CW). POP sites provide local "dial tone" for incoming and outgoing calls in various areas through the means of PSTN gateways. For POP sites, redundancy is only deployed for outgoing calls. (i.e., in the event of a main site failure it would still be possible to place calls from the area served by a given POP (by using PSTN failover i.e. calls would be "backhauled" to our Toronto or Montreal main sites and routed through our network) but incoming calls to primary or secondary phone numbers in that site would not be possible.) The Internet is used to interconnect to the main sites. Such sites must be protected with a firewall. The current plan anticipates that the VoIP service may share a firewall with other services delivered through the Clearwire POP.)