Voice usage on an ISDN line is billed the same as your current voice telephone line. The ISDN voice calls will be billed in accordance with your chosen residence or business exchange plan (i.e., Measured, Unlimited, Metropolitan, Circle Calling Bay State East, etc.) There is no charge for voice calls made within a NYNEX Intellipath Digital Centrex or Centrex Plus system.

Rates for CSD usage are the same as measured voice rates, regardless of the voice calling plan chosen. Consult your NYNEX telephone directory or business office for your local calling area. Customers with unlimited voice service or optional calling plans will pay measured CSD usage. There is no charge for CSD calls made within a NYNEX Intellipath Digital Centrex or Centrex Plus system. For calls to destinations outside the 413 area consult with your long distance carrier. Circuit Switched Data calls are billed on a separate section of the bill under NYNEX SwitchWay usage. Network call usage rates:

Within Local Calling Area
  	Residence & Business

	(1.) Per message			$.01
	(2.) Per minute		Peak		$.016
				Off Peak	$.008
				
Outside Local Calling Area
    	Residence & Business

	(1.) Per message			$.01
	(2.) Per minute		Peak		$.055
				Off Peak	$.036

Message charge				$.01
Five minutes				$.08
Time charge (five minutes)		$.09

128-Kbps call uses 2 channels		 (x2)
Total					$.18