SIP

Skype for SIP Gains Momentum

Mon, 21 Sep 2009 21:07:35 +0100

With the goal to integrate the Skype service with the growing enterprise deployment of SIP and SIP PBXs, Skype has been marketing a gateway interface called Skype for SIP and certifying interoperability with leading vendors. To date, Skype for SIP has been certified for Asterisk, ShoreTel and now SIPFoundry's sipXecs. Organizations desiring to sign up for the Skype for SIP beta need to commit to a monthly fee (incoming Skype calls are free) based on the number of 'channels' which are concurrent...

IT Expo: Ingate Promotes SIP Trunking

Mon, 21 Sep 2009 20:25:01 +0100

I met Steve Johnson, President of Ingate USA, the session border controller manufacturer from Sweden that more recently partnered with TMC to develop a one-day seminar on SIP trunking taught by Ingate staff and resellers. Aimed at users, potential resellers and service providers, the event has been going on for a couple of years now as an event co-located with IT Expo. It was Steve's observation that in tough economic times, enterprises are more willing to experiment with new services if it redu...

VoiceCon: Acme Packet Sets Sights on Enterprise

Tue, 08 Apr 2008 07:00:00 +0100

At VoiceCon, I met with Seamus Hourihan VP Marketing & Product Management and Jim Slaby, Director, Enterprise & Contact Center Solutions Marketing from Burlington MA's Acme Packet. Both Seamus and Jim had worked together at Wellfleet and then Bay Networks in the mid-1990s. With a commanding lead in the [[Session Border Controller]] market, where Acme Packet has 500 customers in more than 85 countries, the products support a wide range of applications spanning VoIP interconnects/...

SIP for Business - standard?

Fri, 29 Jul 2005 00:00:00 +0100

Unhappy with relying on proprietary extensions to do the most trivial of enterprise features - hold, transfer etc - some vendors are tilting at the windmill to get interoperability going. In this story by Phil Hochmuth of Network World, reports on the arguments for SIP-B (SIP for Business) , a definition of RFC 3261 extensions that could enable some proprietary extension conversions to standard practice. Usually promoted by vendors with lots to gain, extensions to standards have a rough r...

VoIP Magazine: SIP, Security and Services

Tue, 05 Jul 2005 00:00:00 +0100

In this interview, I review with Bryan Richard's guidance the scope of 3Com Secure Converged Networks strategy, the depth of our solution set and where 3Com sees substantial opportunities. I even gave a summary of my latest white paper: What's SIP Got To Do With It?

Wall Street Journal Talks About Convergence of Networks AND Carriers

Tue, 17 May 2005 00:00:00 +0100

In today's edition, Ron Kermish and Paul Smith from Bain, discuss the hidden jewel inside MCI and AT&T that made them the target of Verizon, SBC and Qwest. It's VoIP silly. The network, the engineering skill, the intellectual property of how to do VoIP for millions of consumers, businesses and government minutes is at the heart of the purchases. Convergence networks for carriers simplifies management and operation. That's because they simplify the architecture, allowing th...

Where is SIP in the carrier world?

Sun, 08 May 2005 00:00:00 +0100

I went searching around on Google for stuff on SIP and carriers. Here's one of the best articles yet.

Paul Gowans of Agilent Technologies writes about the emergence of the IP Multimedia Subsystem (IMS) in this clear piece on the integration of wireline, IP and wireless networks.

Check it out.

Why SIP Will Dominate #5

Fri, 06 May 2005 00:00:00 +0100

5. SIP is used by enterprises and carriers alike. Since SIP transcends the carrier-enterprise boundaries, it is likely to attract applications developers able to deliver their core applications technologies in a variety of value packages to address different financing models and markets. For example: • The stand-alone enterprise market, addressed by direct sales or resellers; • The stand-alone consumer market, addressed by retai...

Why SIP Will Dominate #2

Thu, 05 May 2005 00:00:00 +0100

Reason # 2: SIP is secure. It's true. SIP, like all IETF-based proposals, leverages the rich capabilities of all underlying services of the Internet environment: • Internet Protocol • TCP • UDP • http • TLS • S/MIME and more. 2. SIP is secure. There are tradeoffs of interoperability and cost when considering security. After all, simple standards make it easier to interoperate within a multi-vendor network. It does however po...

Why SIP Will Dominate #3

Thu, 05 May 2005 00:00:00 +0100

There's not just the story about the protocol, but how SIP is capable of changing the world of communications. PBX vendors have always worked hard to keep the phones tightly coupled to the system. They say it's necessary for feature transparency, but also has the benefit to vendors of tightly coupling the sale of phones to the sale of systems. This runs counter to the architectural shift written elsewhere in this blog that the design of enterprise telephony is shifting to a 'hori...

Why SIP Will Dominate #4

Thu, 05 May 2005 00:00:00 +0100

Surprise! There's a large and vibrant community of applications developers that have focused on SIP as a mechanism for enabling interoperability of their applications with call control and enabling the communications aspects of their application. 4. SIP applications abound. Internet search engines are an amazing proxy for markets and issues. Their objective is to scour the entire Internet, capture prose, process whatever it finds and quickly present it to users with so...

Why SIP Will Dominate Enterprise Telephony

Mon, 02 May 2005 00:00:00 +0100

That's a pretty big title for a blog entry, but it raises a few good points. Here's the top five reasons. I've written a white paper, from which the following prose has been extracted (from the draft): 1. SIP is simple. Using the great Internet Engineering Task Force fundamentals of technology reuse, and simplicity where simplicity is useful, the SIP message set is quite elegant. There are six messages that appear in clear text to facilitate all features. C...