At the firm's new global corporate headquarters, carrier services will be derived from a Verizon four (4) node OC12 Sonet Ring.  This includes local and long distance Public Switched Network (PSTN) service, ATM data WAN access, VTC and CATV network. 

The cost to implement this 4 node Sonet Ring is approximately $45,000 per month.  This covers the monthly recurring access charges for all carrier services.   The current monthly access charges at the original headquarters is $51,000. 

Verizon, Avaya and Lyrix move DIDs & mail box by 7pm the Friday night of each phase.  Local DOD will be achieved from PRI trunks at original HQ and from Sonet 41nd Street PRIs at new HQ.  Long-distance Sprint facilities will be phased out of original HQ as the population migrate over to new HQ.  Long distance services will be fully operational at new HQ in “phase 0”.  For the period of the migration, both original & new HQ will be attached to the data ATM WAN.  One month-to-month voice/data DS3 & 16 point to point voice DS1s will temporarily connect original HQ to new HQ.

There are two Point of Entry’s (POE) for Carrier Service, one on 40^st Street and the other on 6^th Avenue at HQ.  There are a total of twelve (12) sleeves for carrier services, six (6) at each POE.  Cabling is diversely routed up the two building shafts.  Carrier services from the POE to the 7^th floor Communications Center will be XYZ’s responsibility, as it was not negotiated in the lease.