'Calls Considered Harmful' and Other Observations: A Tutorial on Telephony
نویسنده
چکیده
The software application domain of customer-oriented telephony is worth the attention of specialists in formal methods. Primarily this paper is a tutorial about customer-oriented telephony. It also includes observations about how this domain should be formalized, including critiques of some popular
منابع مشابه
This page intentionally left blank. ‘CALLS CONSIDERED HARMFUL’ AND OTHER OBSERVATIONS: A TUTORIAL ON TELEPHONY
The software application domain of customer-oriented telephony is worth the attention of specialists in formal methods. Primarily this paper is a tutorial about customer-oriented telephony. It also includes observations about how this domain should be formalized, including critiques of some popular
متن کاملEmpirical Data from Mobile and IP Telephony
Over the recent years enormous changes in the telecommunication services, techniques, regulations and markets have taken place. However, even with many new exciting services the telephony service is still popular. This paper provides empirical traffic data and observations of telephony traffic patterns in mobile and IP telephony. They are presented and compared with old telephony patterns from ...
متن کاملPhoneypot: Data-driven Understanding of Telephony Threats
Cyber criminals are increasingly using robocalling, voice phishing and caller ID spoofing to craft attacks that are being used to scam unsuspecting users who have traditionally trusted the telephone. It is necessary to better understand telephony threats to effectively combat them. Although there exist crowd sourced complaint datasets about telephony abuse, such complaints are often filed after...
متن کاملSignaling for Internet Telephony
Internet telephony must offer the standard telephony services. However, the transition to Internet-based telephony services also provides an opportunity to create new services more rapidly and with lower complexity than in the existing public switched telephone network (PSTN). The Session Initiation Protocol (SIP) is a signaling protocol that creates, modifies and terminates associations betwee...
متن کاملIs Fixed-Mobile Substitution strong enough to de-regulate Fixed Voice Telephony? Evidence from the Austrian Markets
In this paper, we estimate own-price elasticities for fixed network voice telephony access and national calls services for private users as well as cross-price elasticities to mobile services using time series data from 2002-2007 from the Austrian market. Using instrumental variable estimates and considering cointegration, we find that access is inelastic while calls are elastic. We conclude th...
متن کامل