It's 2012, and there's still no official SIP to Skype gateway | Hacker News Reader

It's 2012, and there's still no official SIP to Skype gateway

10 pointsxxqs24 comments

Any idea why Skype does not provide any official means to call skype accounts from a SIP connection? Even a paid interface is not available. The only thing that is available is a paid service where you can call phone numbers from Skype to your SIP trunk

so, there's a huge world of SIP telephony, and another huge world of Skype users. And they don't talk to each other.

I'm not considering dirty hacks which bind Asterisk or FreeSWITCH with a Skype GUI client installed on the same machine.

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The purpose of Skype is to have a monopoly on the namespace and interop threatens that. Realistically, don't most people use SIP with phones that can only dial numbers?

there's plenty of ways to assign a numeric alias to a SIP name. For example, I run a virtual PBX with my internal numbering plan. I could assign internal numbers to skype names, for example.

Who would make money if this existed? Who would lose money? I have a hard time articulating a concrete benefit for Microsoft that would result from a gateway.

as I mentioned in above comment, I already pay for skype-to-PSTN calls, and I wouldn't mind paying for SIP<=>Skype calls as well

>so, there's a huge world of SIP telephony, and another huge world of Skype users. And they don't talk to each other.

They do talk to each other, users pay for the privilege.

Think of it as a win/win for skype/sip providers. Just not a win for the users.

see my other comment below. I know about SkypeConnect, and it's only usable for particular types of businesses.

the win/win for sype/sip providers is only when the calls go through PSTN beween them.

>I know about SkypeConnect, and it's only usable for particular types of businesses.

I didn't mention skype connect.

>the win/win for sype/sip providers is only when the calls go through PSTN beween them.

Do you really think the operators of skype or the sip providers cut the PSTN people in for anything when they don't have to? The only direct through pstn as a last resort.

I have called peoples skype-in numbers from my skype account. I do get charged for this. I am certain it goes through no pstn network.

could you be more specific? what exactly service did you talk about in the top comment?

>what exactly service did you talk about in the top comment?

Skype.

>They do talk to each other, users pay for the privilege.

what exactly service are you talking about? what kind of communication, between which parties?

There's an online service called Blue Jeans Network that lets you have a conference call with Skype, H.323, Google Talk, and Microsoft Lync participants.

http://bluejeans.com/

yes there are some services like this. I tried Comfytel about a month ago: http://txlab.wordpress.com/2012/01/30/comfytel-com-one-more-...

the problem was, about 30% of calls didn't reach my skype client. I guess Comfytel uses one of those dirty hacks. Probably bluejeans too.

I used to work there, and they have a skypekit license. It doesn't use the "spawn a skype linux client and use the plugin interface" method, it's a direct integration.

hmm, thanks. It's probably a quite expensive license, as the default developer agreement is quite restrictive: http://www.mail-archive.com/asterisk-dev@lists.digium.com/ms...

any explanation why 30% of calls were dropped?

Here's a link for the hack you mentioned: http://www.personal.psu.edu/wcs131/blogs/psuvoip/2011/12/sky...

yes, and I'll never run it on my voip server :)

"Still no"?

There was "Skype for Asterisk" for a long time, and unsurprisingly it's the first hit on Google. It was killed shortly after MS bought Skype. Life is hard when you buy into proprietary protocols.

It was killed shortly after MS bought Skype, but it wasn't MS that killed it.

A year+ before, Asterisk users received an email saying that the contract would not be renewed.

So... Skype launched their official SIP service years ago. It is called Skype Connect. They wouldn't provide a gateway because that would cannibalize their low cost SIP trunking service. See http://www.skype.com/intl/en-us/business/skype-connect/

this service does not allow to call a skype user from a SIP trunk. What they offer is just a regular SIP-to-PSTN service, plus a way for skype users to call into your SIP trunk.

I am paying Skype for PSTN calls already. I wouldn't also mind paying them for SIP-to-Skype and Skype-to-SIP (with any public SIP destination) calls if there were such service.

It is complex to fully reverse engineer Skype: http://en.wikipedia.org/wiki/Skype_protocol

I'm actually talking about officially supported ways of communicating, not hacking

and no IPv6.

granted, getting rid of NAT probably means Skype dies

I don't think so. They have an easy to use client, and a huge user base. I guess they will also add ipv6 support as soon there's enough ipv6 adoption on the residential market.

I also don't have ipv6 at home from my cable provider, and they don't even tell when I can expect it.

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