Estacado Tweaks Push-To-Talk For Wireless - InformationWeek

InformationWeek is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

IoT
IoT
Infrastructure
News
8/15/2006
02:29 PM
Connect Directly
LinkedIn
Facebook
Twitter
RSS
E-Mail
50%
50%

Estacado Tweaks Push-To-Talk For Wireless

A new open-source protocol will help reduce the bandwidth needed for push-to-talk services, which may help push-to-talk gain more corporate adherents.

Push To Talk (PTT), the walkie-talkie-like feature popularized by Motorola's IDEN service, may finally come to a cell phone near you. An open-source project launched last week introduced the protocol stack that will allow PTT to work across any wireless network implementing SIP signaling.

The project, called Open SigComp, was launched by the SIP brain trust over at Estacado Systems. SigComp is short for Signaling Compression, and what this little puppy of a protocol does is speed up the sessions setup under SIP. That's not such a big deal on fat landlines, but it's a whopper of an issue for wireless systems looking to deliver PTT services that require speedy responsiveness across miniscule data connections.

The Open SigComp project will develop a free implementation of SigComp based on Estacado's code. A 0.9.1 version of Open SigComp is currently available. The version is designed to be used in "highly constrained" environments, such as embedded mobile terminals and high-performance, highly scalable servers.

"If you look at the signaling necessary to set up a call using SIP over, say, 1xRTT networks, it can add 5 to 10 seconds to the call setup times," writes Adam Roach, CTO of Estacado in an IM. "Once you compress the call setup messages, you can cut that down by a factor of 10 that is a half-second to one second instead of five to 10 seconds."

That'll be good news for enterprise end users. PTT has gained popularity among retail, transportation, and other businesses needing to keep employees in close contact with one another. However, today Motorola owns the market. Non-Motorola PTT services, such as Sprint's ReadyLink service, have come under fire for being too sluggish. SigComp should address that problem.

But having a published version of SigComp means more than just competing PTT services. It also means PTT services should be able to interoperate. Even if two individuals subscribed to different wireless services, the carriers could offer a PTT service between them, something that's still not possible with any PTT offering today.

We welcome your comments on this topic on our social media channels, or [contact us directly] with questions about the site.
Comment  | 
Print  | 
More Insights
News
Can Cloud Revolutionize Business and Software Architecture?
Joao-Pierre S. Ruth, Senior Writer,  1/15/2021
Slideshows
10 IT Trends to Watch for in 2021
Cynthia Harvey, Freelance Journalist, InformationWeek,  12/22/2020
News
How CDOs Can Build Insight-Driven Organizations
Jessica Davis, Senior Editor, Enterprise Apps,  1/15/2021
White Papers
Register for InformationWeek Newsletters
The State of Cloud Computing - Fall 2020
The State of Cloud Computing - Fall 2020
Download this report to compare how cloud usage and spending patterns have changed in 2020, and how respondents think they'll evolve over the next two years.
Video
Current Issue
2021 Top Enterprise IT Trends
We've identified the key trends that are poised to impact the IT landscape in 2021. Find out why they're important and how they will affect you.
Slideshows
Flash Poll