We selected Jajah and Mobivox as our choices in addition to using just Skype.

I wrote the whole selection process to my blog at: (link)

When you say
“running it a pure peer-to-peer client is just not possible on many of today’s networks”
I am not getting what are the problems Skype is going to face with current network and how do 3G solves them?

With care
Arif.

Ted Avery you are clueless. On UTMS you can have data connection and voice call simultaneously.

So… Skype has no fees for on-net calling, and it has no servers handling call switching etc. Instead it uses processing from the callers’ PCs. It still had developers and reg servers to pay for. So SkypeOut has fees because it costs real money to terminate calls onto PSTNs and wireless networks. And maybe that covered the other costs, because there were no other sources of revenue.

While Skype has no infrastructure costs this is not the case for SIP. SIP needs relatively heavyweight servers to perform the caller lookup, handshaking, and connectivity (though not to carry traffic). So on-net calls via SIP cannot be entirely free, whereas the same calls on Skype can be. At least until the P2PSIP recommendations have been made real - then at that point in the future SIP looks like Skype and can have costs like Skype.

BTW supernodes are not the bandwith consumer that everybody talks about (but that’s another subject).

NB: I’m an engineer at Skype

that is my bad. i was writing this while waiting to change flights. so overlooked a few things. errors are regretted and will try harder next time around.

Om’s question was if Skype had architectural challenges that would impede those catalysts. The answer is probably yes - in that Skype on mobile phones would need to leech off the processing power of desktop PCs.

I want my phone to work. Period. Also, money is not really the option anymore. I have an all I can eat subscription anyway (including broadband and VOIP) for my private phone and my company mobile has free internal calls.

//Niels

No good. You need Mylo AND your normal cell phone.

This is why Mylo will fade.

On the other hand… I use fring on my cell phone with a $12 per month unlimited GPRS data plan. This allows me to make free calls to other fring, Gtalk or Skype users and $0.021 per minute for Skypeout calls to landline or cell phones.

The VOIP option is much more feasible & affordable to me. If VOIP Buster could launch a mobile application, I would be able to make free calls to Landlines & Cell phones as well.

Is it legal? Probably not - Cingular and Verizon both have terms of service prohibiting VoIP traffic.

QoS - yeah well you might need that between you and the cell tower if you were doing something gnarly in terms of bandwidth at the same time as placing a Skype call. But after the tower, it’s not needed. Not diving into QoS debates here but QoS assists to ration scarce bandwidth, once it’s not scarce the impact of QoS is small.

If you do the math for a $49.99 US cellphone data plan and calculate it for 1350 or 6000 minutes of use it works out that this is cheaper than the equivalent cellphone voice plan. Add in International calls and the savings are 50% or more, even assuming Skypeout costs to terminate to the PSTN.

Is Skypeout cheaper than Mobile night-time or in-Carrier or in-family minutes which are ‘free’? No, but that’s before you add in the base rate of the voice plan that got you those ‘free’ minutes. Add in all the costs and Skype (which incidentally is not at all the cheapest VoIP bypass service) is cheaper.