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| Thread ID: 78415 | 2007-04-14 11:57:00 | VoiP and Dubai | DrMD (7778) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 541008 | 2007-04-14 11:57:00 | VoiP sounds great, but we want to use it to Dubai, and have been told that Etisalat (main ISP) blocks Skype, MSN and others. Is there a way around this? Skype seems very fragmented to the UK anyway. ?Skype or Telecom. Any workable alternatives that people can suggest? Many thanks. | DrMD (7778) | ||
| 541009 | 2007-04-14 12:41:00 | Not sure what the issue is there. The company Dad works for has an office here and an office in Dubai (inside the free zone though, not sure if that makes a difference), and they use skype to keep the phone costs down. It seems to work fine, with no hassles. | Erayd (23) | ||
| 541010 | 2007-04-15 02:45:00 | Funny, someone just rang me about Skype. Something was sucking all their bandwidth and they couldn't find any malware with their scans so I aksed if they had Skype. Yep. This from an article: Skype might be the next big thing but for now your users could very well be sapping your bandwidth. A VoIP call over Skype uses up between 24 and 128kbit/s service. This is the same as what Skype itself specifies. However, Tolly found that when a Skype "station" was used as a relay, the bandwidth usage doubled. The Skype PC becomes a "supernode". Skype's official End-User Licence Agreement (EULA) no longer mentions supernodes, but now says merely: /"//4.1 Permission to utilise your computer. In order to receive the benefits provided by the Skype Software, you hereby grant permission for the Skype Software to utilise the processor and bandwidth of your computer for the limited purpose of facilitating the communication between Skype Software users. //"/ However, earlier descriptions of the supernodes say their main purpose is to help Skype traverse Network Address Translation (NAT) and firewalls. Supernodes are computers running Skype and have IP addresses routable on the internet. These then act as "go-betweens" for communications between Skype users behind NAT and firewalls, who would normally not be able to talk to each other. The deliberate "firewall busting" means Skype violates some organisations' security policies. When the computer goes into supernode mode, Skype opens up a great number of network connections over TCP (Transmission Control Protocol, part of the Internet Protocol suite). In a posting on the Skype user forum bulletin board, Bond describes how his Linksys router was overwhelmed by over 1,500 TCP connections being opened in supernode mode. As there is no way presently to limit the number of connections Skype opens up, Bond had to turn off Skype and has since firewalled incoming connections to it. Others users say that by unticking the "use port 80 and 443" options in the Skype Tools menu, the computers will not become supernodes. However, reports elsewhere warn against using Skype on connections with high bandwidth and IP addresses routeable on the internet. In supernode mode, Skype is reputedly able to saturate 100Mbit/s connections. Universities with high-speed connections often ban Skype usage because of this. Skype was contacted for comment on the supernode issue, but didn't respond before going to press. If you want free calls, sorry. But Ihugs phone service has a flat rate plan: Unlimited overseas calls for $40 a month. At least you know it isn't controlling your PC. |
pctek (84) | ||
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