An empirical validation of software cost estimation models
Communications of the ACM
A microeconomic approach to the measurement of information technology value
Journal of Management Information Systems
Internet economics
Internet cost structures and interconnection agreements
Internet economics
Internet cost allocation and pricing
Internet economics
Quality-of-service in packet networks: basic mechanisms and directions
Computer Networks: The International Journal of Computer and Telecommunications Networking - Special issue on Internet telephony
Software Cost Estimation with Cocomo II with Cdrom
Software Cost Estimation with Cocomo II with Cdrom
BT Technology Journal
Researching the costs of information systems
Journal of Management Information Systems - Special section: Strategic and competitive information systems
Information Technologies and International Development
Performance evaluation of bandwidth allocation in ATM networks
International Journal of Business Information Systems
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Today, internet telephony has become a commonplace application in enterprise. Along with the wide acceptance of IP Telephony (IPT) in business, many academics and practices have been mainly focused on internet telephony's technical migration from the existing public-switched telephone network. While there have been a small number of its cost studies in academic literature, they have been for abstract networks, or they have not included the operating costs. This paper compares the network operating costs portion of a traditional telephony network (PSTN) and an IP-based network as a case study. We have found that the operating costs differential between IP and circuit switching is small.