A Case Study
نویسندگان
چکیده
This article seeks to develop a richer understanding of the suitability of IP telephony in the Public Switched Telephony Network (PSTN) with an actual local exchange carrier (LEC)’s case and network simulation. We also performed a simple real options analysis to evaluate a telecommunications network. The underlying network and associated data were derived from our studies of an actual LEC. The preliminary result shows that an IP telephony network would save about 73% of the total link capacity of a circuit switched network and it could also carry some integrated services traffic at low incremental cost. The value of the IP telephony network was shown as positive under real options and as negative using net present value (NPV). We measured deferrable and irreversible value as well as the uncertainty value of an IP telephony network. Through this experiment, we can get inference that IP has potential for a voice carriage.
منابع مشابه
Familial risk of acne vulgaris in 8-13 year-old females: A case-control study
Background: Acne vulgaris has a multifactorial pathogenesis; however, the exact role of genetic predisposition is not clear. Some studies have reported an association between familiy historyof acne and moderate to severe acne. In this study, we investigated the relationship between familiy history and prevalence of acne vulgaris in girls 8 to 13 years of age.Methods: This case-control study enr...
متن کاملHyperamylasemia in a Patient with Uncomplicated Appendicitis: A Case Report
Background and Objectives: Today, in addition to the acute pancreatitis, hyperamylasemia is seen among some other acute surgical conditions. Therefore, the aim of this study was to introduce a case of hyperamylasemia as a rare case in a patient with uncomplicated appendicitis. Case report: The present study was a case report in which a 10-year-old patient referred to Ali-ebn Abi Taleb Hospita...
متن کامل