VoIP is a solid technology available since some years that allows people to communicate via voice using the IP protocol instead of telephone lines.

Unfortunately this technology has been relegated in a niche market due to several factors such as proprietary standards, high price tag, limited integration with existing telephony environments. However in the last couple of years the situation changed dramatically since some open source tools such as asterisk [asterisk] as well as low-cost VoIP telephone adapters and services become available. In fact, today it is quite common for internet providers to provide their customers VoIP calls at very low cost, if any, in addition to standard xDSL connectivity. More…

Long distance calls to Bulgaria is no longer expensive. This is because of the use of Bulgaria Phone Cards. Bulgaria Phone Cards are considered to be one of the best monitored phone cards. The call rate is considerably reasonable and there are no hidden costs. The rates are so structured that it is within the reach of every section of the population.

There are numerous long distance calling companies, each with different tariff plans to suit the different categories of callers. It would be ideal that depending on his calling needs and the budget, the caller should select the service provider. In addition to the rate, he should also consider the reliability of the service provider, quality of connectivity and such other factors. Availability of reliable help line is yet another deciding factor in choosing the service provider. More…

We present the new watermarking scheme which guarantees the even time adjustment for embedding the watermark in real time and has all the theoretical strengths of work. Unlike the watermarking scheme proposed in previous work [32], our new watermarking scheme is probabilistic in the sense that the watermark embedding success rate is not guaranteed 100%.

In other words, the new watermarking scheme trades o® the guaranteed 100% watermark embedding success rate with the guaranteed even time adjustment for embedding the watermark. By exploiting the inherent inter-packet timing characteristics of the VoIP °ows, our new watermarking scheme achieves virtually 100% watermark embedding success rate with guaranteed even time adjustment for embedding the watermark.

Source: Chief Information Officers of the States

There are a number of privacy issues regarding storage of call detail records. Agencies and other organizations should review these issues with their legal advisors. US Government guidance on these issues includes the following:

• the Privacy Act of 1974.
• Office of Management and Budget “Guidance on the Privacy Act Implications of Call Detail Programs to Manage Employees’ Use of the Government’s Telecommunication System” (See FEDERAL REGISTER, 52 FR 12990, April 20, 1987).
• NARA General Records Schedule 12, which requires a 36-month retention of telephone CDR records http://www.archives.gov/records_management/ardor/grs12.html
• 21 CFR 102-172, Federal Management Regulation (FMR), Telecommunications Management Policy. 21 CFR 102-172.

Note that 21 CFR 102-172 replaces 21 CFR 101-35, Federal Property Management Regulation (FPMR), Telecommunications Management Policy, which expired in August 2001. More…