Featured Research

from universities, journals, and other organizations

Researchers Enhance Spam Call Filtering

Date:
April 5, 2009
Source:
Helsinki University of Technology
Summary:
Researchers are developing a new system for blocking spam calls in a flexible way. Spam calls (junk calls or Spam for Internet Telephony, SPIT) are unwanted calls often made by an automat playing a recorded advertisement. As free Internet-based telephony is rapidly gaining popularity over traditional charged calls, the risk of spam calls is increasing.

Researchers in Helsinki Institute for Information Technology HIIT are developing a new system for filtering spam calls in a flexible way. Spam calls (junk calls or Spam for Internet Telephony, SPIT) are unwanted calls often made by an automat playing a recorded advert.

As free Internet-based telephony is rapidly gaining popularity over traditional charged calls, the risk of spam calls is increasing. Skype is one of the best known providers of free calls using peer-to-peer networks.

HIIT researchers Joakim Koskela, Juho Heikkilδ and Andrei Gurtov have created a system for filtering calls on peer-to-peer networks in a more flexible way than before. In the new system, users can accept calls from people who are unknown to the user, but amongst the contacts of friends, or even friends of these contacts. Before the user answers the phone, the system can warn the user that he does not know the calling person.

The flexibility makes spam call prevention more practical. This makes it possible to use the filtering more commonly than today.

The new system can still completely block calls from unknown persons and let friends through, just like Skype today.

Technically speaking, the goal is to implement an application integrating Host Identity Protocol HIP and Peer-to-peer Session Initiation Protocol P2P SIP. The application provides VoIP and IM capabilities using trust chains to prevent spam calls. One of the challenges is to form trust chains from call trace data without violating privacy.

Future Internet is one of the research fields of Helsinki Institute for Information Technology HIIT. HIIT is a joint research institute of Helsinki University of Technology TKK and the University of Helsinki for basic and strategic research on information technology.


Story Source:

The above story is based on materials provided by Helsinki University of Technology. Note: Materials may be edited for content and length.


Cite This Page:

Helsinki University of Technology. "Researchers Enhance Spam Call Filtering." ScienceDaily. ScienceDaily, 5 April 2009. <www.sciencedaily.com/releases/2009/04/090402092851.htm>.
Helsinki University of Technology. (2009, April 5). Researchers Enhance Spam Call Filtering. ScienceDaily. Retrieved September 1, 2014 from www.sciencedaily.com/releases/2009/04/090402092851.htm
Helsinki University of Technology. "Researchers Enhance Spam Call Filtering." ScienceDaily. www.sciencedaily.com/releases/2009/04/090402092851.htm (accessed September 1, 2014).

Share This




More Computers & Math News

Monday, September 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Apple's Rumored iWatch Could Cost $400

Apple's Rumored iWatch Could Cost $400

Newsy (Aug. 31, 2014) — Apple is expected to charge a premium for its still-rumored wearable device. Video provided by Newsy
Powered by NewsLook.com
Young Entrepreneurs Get $100,000, If They Quit School

Young Entrepreneurs Get $100,000, If They Quit School

AFP (Aug. 29, 2014) — Twenty college-age students are getting 100,000 dollars from a Silicon Valley leader and a chance to live in San Francisco in order to work on the start-up project of their dreams, but they have to quit school first. Duration: 02:20 Video provided by AFP
Powered by NewsLook.com
JPMorgan Chase Confirms Possible Cyber Attack

JPMorgan Chase Confirms Possible Cyber Attack

Reuters - US Online Video (Aug. 28, 2014) — Attackers stole checking and savings account information and lots of other data from JPMorgan Chase, according to the New York Times. Other banks are believed to be victims as well. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Spend 2 Minutes Watching This Smartwatch Roundup

Spend 2 Minutes Watching This Smartwatch Roundup

Newsy (Aug. 28, 2014) — LG announces a round-faced smartwatch, Samsung adds 3G connectivity to its latest wearable, and Apple will reportedly announce the iWatch on Sept. 9. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins