Skype Journal: Is Telmex blocking Skype, Vonage users in Mexico?
May 11, 2005 05:05 AMJonathan Clark of The Herald Mexico reports "
Users decry decline in service." We've seen posts on this in the Skype developer forum, and elsewhere for a few months. Is this a rumor? Or is Telmex's Mexican subsidiary squelching perceived competition? Could the Vonage blocking be from defective, incompatible or poorly configured modems? Or from non-VoIP-specific traffic management that hurts VoIP users as a side effect?
Can you suggest a trustworthy, repeatable test for complete blockage and for intentional downgrading of VoIP service? Do you have first hand observations about Skype over Telmex? Please comment.
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Comments (11)
!!YES IT´S TRUE!! SOMETIMES THE VOICE GETS REALLY BAD AND ALSO WHEN YOU TRY TO OPEN WWW.SKYPE.COM YOU GET A MESSAGE: "This site is Forbidden"
Posted by: diego at May 11, 2005 8:35 AM
Dont konw if its true but sounds very telmex.
Back Ground:
1. Telmex was property of the mexican goverment.
2. Telmex was adquired by Carlos Slim (currently #4 Richest man according to FORBES), in not so clear conditions.
3. Carlos Silm and Bill Gates are associates (currently the internet service provided by Telmex is prodigy wich is part of MSN, actually the default home page is T1MSN)
4. 95% the comunicatios infraestructure in Mexico is owned by Telmex.
5. So it woudn surprise me if they blocked the competition the hard way, they already did that with ATT and MCI when they tried to stablish here in Mexico, its kind of theirs Modus Operandy.
Sorry About the spelling English isnt my natal language.
Gracias.
Posted by: P. A. From Mexico at May 11, 2005 8:55 AM
FACT 1
• Infinitum service is designed to provide Internet access at the best possible quality of service module or “Best-Effort (BE)” as it is known worldwide, in which there is no mechanical implementation that differentiate services or applications.
• This is the way the Internet was originally conceived, based on the delivery of “best-effort” data, point-by-point.
• Infinitum is not designed to distinguish traffic types or priorities. All of the data packages are treated equally.
• Infinitum service will be provided without a commitment value in certain parameters like in the case of percentage losses in the database, jitter, delays, etc.
• We cannot guarantee continuous functioning under this definition of net in real time applications, like remote video, multimedia conferences, Internet voice or virtual reality, because of variable delays and the potential loss that naturally occurs in the Internet.
FACT 2
• All ports are open in the Infinitum service.
• Firewalls on the customer’s side can cause that certain applications cannot use some of the ports.
• Telmex does not block any sites.
• Like all of the major ISP’s of the world, a DNS degradation caused by worms, request an explosion of information and will temporarily compromise the service.
FACT 3
• PTP (Peer-to-Peer )traffic deteriorates the user experience and can cause congestion to Internet access.
• The congestion caused by P2P is because of the use of applications like: Kazza, Edonkey, Bittorrent, Limewire, Morpheus, Emule, etc,
• P2P will radically change traffic behavior.
• P2P increases operator costs on traffic and Internet capacity.
• P2P complicates Internet planning.
• P2P prevents the development of sensitive services to quality services
• (QoS)(VoIP)
• Infinitum service has experienced enourmus P2P traffic explosion. That is very similar to the one experienced by European operators: P2P traffic can variate between60%-80% of the total.
• In the U.S., traffic fluctuation is between 60% to 65%
• 10% of customers consume 80% of the available bandwidth .
It is not only what customers´ download from the Internet (perceptible to them), it is also what other consumers are downloading in other PC´s (not perceptible), what consumes all of the customer´savailable bandwidth. .
• The impact on Internet traffic on P2P applications is not only measured by the amount and file size exchanged, but also by the process involved in this system.
• All equipment connected to these applications establish constant communication and are victims of the process of other equipments searching also for files and because of this, the equipment is permanently emitting information.
• It is even worse when a customer decides to configure a PC as Supernode that absorbs all of the available bandwidth.
FACT 4
• The unpredictable and continuous “worm” attack, and SPAM has grown out of proportion
• Worms like “MyDoom and Bagle” (the Troyan like Phatbol) give control of the equipment to “Hackers”. This huge net of zombies and compromised equipment (so-called “Botnets”) can be used for “SPAM” distribution or used as a platform for DDos attacks (denial of service) throughout the Internet.
• SPAMERS use these mechanisms to hide their real IP addresses.
• A huge amount of SPAM (between 60% to 80%) is originated in “SPAM ZOMBIES”.
• When you have a large group of equipment carrying out these attacks, it is very difficult to locate the origin of these attacks and solve them in real time , without causing massive interference on other Internet operations and to real and legitimate users.
FACT 5
The challenge for the major ISP´s is:
• Introduce control mechanisms without creating Internet delays.
• Face constant traffic growth, risk of degradation of the service and the Internet costs related to P2P traffic.
FACT 6
• For Infinitum service we have not implemented a technology that will make the prioritization of some Internet services possible. Eventually, we will evolve in this direction in order to provide and guarantee the provision and charge of these services.
• Eventually, we will offer Internet services with a different commitment “QoS” (Quality of service), with a SLA mechanism (service level agreements).
• In order to support services with “Real time” quality, we need to modify the infrastructure to follow up with these Internet characteristics from beginning to end.
• We will acquire the capacity to control the distribution of Internet bandwidth for each user with different types of traffic. Therefore, we need to divide total traffic in different categories and assign a minimum percentage of total bandwidth to each one, under high usage and congestion conditions.
• These different kinds of traffic can represent different kinds of users and protocols.
• In a Net with these characteristics, the cost for the use of this particular service will be higher than the traditional best-effort transfer.
FACT 7
• Recent surveys reflect that Infinitum is a product with the highest satisfaction index that is above average of the G-8 Group members.
• Our commitment is to offer our customers with the best bandwidth service and we constantly improve the infrastructure introduce new benefits and enhance capacity.
ANNEX.
Clauses from the contract between the user and Prodigy INFINITUM.
SEVENTH. POLICIES OF INTERNET USE.
The use of the SERVICE as a Customer, implies the acceptance and conformity of the following:
• The customer is aware of the nature of the INTERNET and its limitations, its technical qualities and the response time to consult, question, or transfer data and information.
• Social, political cultural, among other events, can sometimes cause that the use of the INTERNET to increase significantly affecting optimal operational conditions., causing a temporary saturation that creates a delay in the Service.
• The customer understands that the Internet is a net in a net of networks, and the paralyzation of one of these nets can cause temporary saturation that slows down Service.
• TELMEX will not be held responsible for any damage or loss of information by the customer, caused by configuration, delays, non-delivery, failed deliveries, errors or Service interruption.
• The customer recognizes that any information, product or service available through the INTERNET, different from those provided by TELMEX, are provided by other users or other parties, which are responsible of supporting or maintaining their information, products or services.
Posted by: Concepción Rivera at May 17, 2005 9:17 AM
wow... nice data up there, thanx a lot, guess you work in telmex or have something to do with it. Im a prodigy infinitum user, and personally have never had any problem using skype, it's been wonderful and don't have any complaints about it, even though i'm under 2 firewall apps (1 router w/ firewall and the personal software firewall installed on my pc) i have never experienced any problem using it
so i guess it was just a temporary and very regionalized problem...
Posted by: antonio at May 18, 2005 10:33 PM
Let me translate this long post to those of you who are neither lawyers nor have the time:
YES, TelMex IS blocking Skype and the other VoIP providers, but there is so much legag BULL put in place that this is impossible to prove. Just what TelMex likes.
TelMex, as well as MSFT, are very monopolistic enterprises. Just do a little research and you will find there are a couple of legal initiatives in the Mexican Legislature to legally prevent local mexican businesses to use VoIP. And who do you think is backing those efforts? Carlos Slim.
No woories, Mon. The market is more powerful that all of them.
Posted by: Skype Politically Correct at October 28, 2005 3:44 PM
I agree Telmex is the Microsoft of Telecomunications! Down with Telmex and monopolies!
Posted by: Kristian Alvarado at January 9, 2006 12:11 AM
The customer recognizes that any information, product or service available through the INTERNET, different from those provided by TELMEX, are provided by other users or other parties, which are responsible of supporting or maintaining their information, products or services.
Posted by: e at May 31, 2006 1:27 PM
It sucks that they wanna block skype and vonage, everyone deserves to save money.
Posted by: ellie drey at May 31, 2006 1:28 PM
The only ones benefitting from this mess is TelMex. Not only are they charging more, they are making their business look bad in the eyes of many potential customers. Customers should always be allowed to save money if its possible!
Nationwide VPN
Posted by: billy at July 26, 2006 11:13 AM
when i signed my infinitum contract i read a clause that says "it is forbiden to use infinitum for voip applications" of course i dont care and i use skype all the time, so if they catch me and want to break the contract i will subcribe to cableacces....
Posted by: octavio at October 29, 2006 11:02 PM
i guess these people will use ultraVPN like they do in the UAE and and we will be back at the beginning...
cat and mouse game isn't it?
Posted by: ivan at November 5, 2006 3:37 AM