Category: SIP
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I’ll be in Miami next week speaking at ITEXPO, Cloud Communications Summit, etc.
Continue Reading: I’ll be in Miami next week speaking at ITEXPO, Cloud Communications Summit, etc.If any of you will be in South Beach, Miami, next week I’ll be there speaking as part of the Cloud Communications Summit and SIP Trunking Workshops. I’ve got a page up on Voxeo’s site that shows my schedule at:http://blogs.voxeo.com/events/itexpo-east-2011/
I know a good number of other folks from the VoIP/UC/Cloud Telecom/Voice Mashups/SIP/etc. world are all going to be down there, so I’m looking forward to catching up with some folks there.
If you are down in Miami for ITEXPO, the Cloud Communications Summit, Digium/Asterisk World or any of the other events, please do stop by and say hello… or find me down at one of the sessions I’m in (my schedule is online). You can always email me or ping me on Twitter.
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Want to Learn About SIP? Attend the SIP Tutorial at ITEXPO (50% Discount Code)
Continue Reading: Want to Learn About SIP? Attend the SIP Tutorial at ITEXPO (50% Discount Code)Do you want to learn more about the Session Initiation Protocol (SIP) and how it enables Voice over IP (VoIP) and Unified Communications? Want to learn how it works? What it does? How it can be used? How secure it is? How does SIP relate to HTML5 and what is going on with the “real-time web”?
If so, consider attending the SIP Tutorial at ITEXPO next week in South Beach, Miami, Florida, on Friday, February 4, 2011.
Taught by Dr. Alan Johnston and Dr. Henry Sinnreich, two veterans of SIP and IETF work, the day-long session covers a wide range of topics. In speaking to Alan Johnston, he said that for the first time this session next week will particularly get into some of the real-time communication coming into HTML5 and related technologies.
If you would like to attend the session you can still register. Alan passed along that the priority code “SIP” will get you a 50% discount.
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Android 2.3 Includes SIP Stack, Near Field Communications, More
Continue Reading: Android 2.3 Includes SIP Stack, Near Field Communications, MoreVery cool to see that the Android 2.3 release includes a SIP stack:The platform now includes a SIP protocol stack and framework API that lets developers build internet telephony applications. Using the API, applications can offer voice calling features without having to manage sessions, transport-level communication, or audio — these are handled transparently by the platform’s SIP API and services.
The SIP API is available in the android.net.sip package. The key class is SipManager, which applications use to set up and manage SIP profiles, then initiate audio calls and receive audio calls. Once an audio call is established, applications can mute calls, turn on speaker mode, send DTMF tones, and more. Applications can also use the SipManager to create generic SIP connections.
Naturally this SIP stack is only available if the carrier and manufacturer allow it:
The platform’s underlying SIP stack and services are available on devices at the discretion of the manufacturer and associated carrier. For this reason, applications should use the isApiSupported() method to check whether SIP support is available, before exposing calling functionality to users.
Call me cynical, but I could see a number of carriers NOT allowing the SIP stack.
The Android team has also…
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Today’s VUC call at noon US Eastern: FREETALK Connect – Skype-connected IP-PBX
Continue Reading: Today’s VUC call at noon US Eastern: FREETALK Connect – Skype-connected IP-PBXIn about 40 minutes, this week’s VoiP Users Conference call will start with Jim Courtney talking about the new FREETALK Connect IP-PBX. It includes:- Skype connectivity for all phones.
- Auto-provisioning works with almost all models of desktop and conference IP phones
- Install wizard configures all basic networking, telephony system and user functionality on the FREETALK Connect
- Remote administration capabilities that enable the system to be administered from anywhere Internet access is available.
I’m intrigued by the system because it integrates an Asterisk-based IP-PBX with Skype – and is “certified” by Skype. I’m looking forward to hearing what Jim has to say about it.
If you’d like to listen live, there are regular, SIP and Skype contact phone numbers to dial into the VUC. You can also jump on #vuc on IRC to join in the text backchannel.
If you can’t join live, a recording of the call will be posted to the episode’s web page sometime in the next few days.
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A Brief Primer on the Tech Behind Skype, P2PSIP and P2P Networks
Continue Reading: A Brief Primer on the Tech Behind Skype, P2PSIP and P2P NetworksWhat is an overlay network? What’s a DHT? How does a node compare to a supernode? What differentiates a “pure” peer-to-peer (P2P) system from a “hybrid” system?
UPDATE: Unfortunately, this post is no longer accurate with regard to Skype’s infrastructure. After the massive Skype outage in December 2010, it was expected that Skype was exploring ways to make their system more stable and resilient. In early 2012, Skype (at that point now owned by Microsoft) was reported to have replaced much of the P2P supernode infrastructure with supernodes hosted in Microsoft data centers. Since that time we’ve understood that additional changes have been made for resiliency’s sake. Given all that, it’s hard to know exactly how Skype’s infrastructure exists today. This article below does, though, provide some background into the basics of peer-to-peer (P2P) infrastructure.I have a series of posts planned over the next few weeks related primarily to Skype and some of the changes brought about in Skype 5.0 for Windows that are interesting from a technology point-of-view – but in order to write those posts, I need to build a bit of a…
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NetworkWorld interviews SIP pioneer and now Skyper Jonathan Rosenberg
Continue Reading: NetworkWorld interviews SIP pioneer and now Skyper Jonathan RosenbergThis week Network World ran a great interview with Jonathan Rosenberg about his new role at Skype. Jonathan is now the “Chief Technology Strategist” at Skype, but he’s known in the industry as one of the co-authors of the original RFC 3261 that defines the Session Initiation Protocol (SIP) and also for his many years working at Cisco. He’s been extremely active within the IETF, writing a seriously large quantity of Internet-Drafts. I think, in fact, I first met JDR at an IETF meeting… and subsequently was on at least one panel with him (I think a VoiceCon or Interop in New York).It’s been interesting to watch Skype accumulate more and more people with strong SIP backgrounds, and hiring Jonathan was definitely an interesting – and good – move on Skype’s part.
I don’t know that the Network World interview broke any amazing new ground for those of us who have been watching Skype closely, but if you haven’t been paying attention to Skype, Jonathan gives a great view into what the company has been doing lately and where it is going. It is definitely worth a read.
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CounterPath launches SIP/VoIP softphone for iPhone/iPad and brings enterprise to mobile
Continue Reading: CounterPath launches SIP/VoIP softphone for iPhone/iPad and brings enterprise to mobileHave you wished you could easily extend your corporate IP-PBX to your iPhone? Or have you wanted a good SIP softphone for your iPhone that you could use for testing systems? Or do you just like new shiny iPhone and iPad apps?This week long-time softphone maker CounterPath Corp. released their “Bria iPhone Edition” and for $3.99 it’s a great app to have! Ever since I learned about it a couple of days ago, I’ve been playing with it and this morning I posted a video review as Emerging Tech Talk #51. I show how I’ve connected the app to Voxeo’s corporate IP-PBX, how I can use it to make calls to both regular phone numbers and also SIP URIs, how it works with the iPhone’s address book and also how I can use it on the iPad. You can view the 7-minute video here:
Now my friend Alec Saunders spoke with someone at CounterPath and published a great post yesterday discussing some of the limitations and the future plans that CounterPath has. Definitely worth a read – and I’m looking forward to some of those plans! (Like wideband codecs and multi-tasking support.)
As he notes, this Bria app…
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Speaking at ITEXPO / Cloud Communications Summit Jan 20-22 in Miami…
Continue Reading: Speaking at ITEXPO / Cloud Communications Summit Jan 20-22 in Miami…On Monday I’m heading down to Voxeo’s corporate headquarters in Orlando, FL, but the week after that I’ll be heading down to ITEXPO in Miami Beach, FL, where several of us from Voxeo will be speakingIronically, I won’t be speaking actually at the formal “ITEXPO”, but rather at the Ingate SIP Trunking Seminars and then at a new “Cloud Communications Summit” coordinated by Thomas Howe. Somehow my sessions wound up back-to-back… I’m just hoping the rooms aren’t too far apart!
Voxeo will also have a couple of exciting announcements, so it should be a great event. Here’s my speaking schedule:
Wednesday, January 20, 2010
11:30-12:00, Ingate SIP Trunking Seminars, Dan York
“The Enterprise Edge and Security”
Representing the VoIP Security Alliance (VOIPSA), Dan York will give an overview of security concerns related to Unified Communications and VoIP with a focus on SIP trunking.
12:00-1:30pm, The Cloud Communications Summit, Dan York
“Cloud Telephony for the Enterprise”
This session discusses tradeoffs in deploying communications applications behind the firewall, with a hosted partner or through elastic mechanisms such as Amazon’s EC2.
Other speakers planned for this session are Troy Davis, CEO of CloudVox, and Evan Cooke, Co-Founder and CTO of Twilio. Thomas…
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Of Skype, SIP, P2P and P2PSIP…
Continue Reading: Of Skype, SIP, P2P and P2PSIP…Over on Voxeo’s Speaking of Standards blog, I put up a post today on:Could Skype realistically replace its P2P algorithm with P2PSIP?
I decided to write it after reading the comments on Phil Wolff’s post last week over on Skype Journal… mostly to talk a bit more about what P2PSIP is and how it compares to what Skype is using now.
While it’s interesting to talk about on a technical level – and I admit to a complete fascination with the technology behind P2P networks – the reality is that none of us really know anything about what Skype is up to. 🙂
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Skype takes a SIP of Cisco with UC500 Skype For SIP certification
Continue Reading: Skype takes a SIP of Cisco with UC500 Skype For SIP certificationIt’s been a busy month for the folks in the Skype For SIP project. First, back on September 9, Skype announced ShoreTel interoperability. Then last week on September 17, Skype announced interop with the open source SIPFoundry sipXecs product.Today, though, is Skype’s biggest announcement yet – they are announcing the certification of Cisco’s Unified Communications 500 Series for Small Business as interoperable with Skype For SIP.
Beyond simply the interop, what’s perhaps more interesting is to note the direct Cisco involvement with this news release (through a quote). Looking at the overall industry, it’s interesting to see Cisco and Skype connecting. I admit that I haven’t studied Cisco’s UC500 product much at all, although per the news release it sounds like they are doing some interesting things with it:
The Cisco Unified Communications 500 Series platform is part of Cisco’s Smart Business Communications System which continues to expand having just added a new set of IP phones with high definition audio, a unified threat management device as well as support for third party application integration, including products from healthcare, automotive and insurance industries.
Congrats to both Skype and Cisco on this announcement. I expect we’ll be seeing more of…