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	Push to talk - Wikipedia, the free encyclopedia
		Push-to-talk (PTT) is a method of conversing on half-duplex communication lines, including two-way radio, using a button to switch from voice transmission mode to voice reception mode.
		The protocol was as follows: The mobile telephone user pressed and held their PTT (Push-to-Talk) button for several seconds to get the mobile operator's attention.
		The Mobile Tornado, Motorola, Nokia, Ericsson, Siemens, Sonim, Huawei, Wireless ZT, etc. versions of PTT are based on 2.5G or 3G packet-switched networks and use SIP and RTP protocols.
	en.wikipedia.org /wiki/Push_to_talk (671 words)

	Petroleum Authority of Thailand (Site not responding. Last check: 2007-11-04)
		One of the pipeline projects under-taken by PTT is the construction of pipeline from the Bangkok field in the Gulf of Thailand to the Erawan field and from the Erawan field to Khanom district in Nakhon Si Thammarat province.
		PTT has been designated as the core agency in establishing Thai Petroleum Pipeline Co.,Ltd. (PTT has a 30.6% interest), to construct an oil pipeline from refineries in Chon Buri province to Saraburi province.
		Above all, PTT believes in maintaining its role as the national oil firm, which not only responds to the original goals as stipulated in the law, but also develops Thailand's strength to face up to any challenges in the years to come.
	www.nectec.or.th /users/htk/SciAm/12PTT.html (934 words)

	PTT - e-learning solutions (Site not responding. Last check: 2007-11-04)
		PTT is the developer of the learntelecoms range of e-learning courses covering telecoms and datacoms networks.
		PTT provides a full range of quality e-learning development services from setting of training objectives, through course design to course delivery and learning management.
		PTT is particularly adept at devising e-learning that explains complex technical subjects in a clear, engaging way.
	www.ptt.co.uk (152 words)

	PTT: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-11-04)
		PTT is an acronym[For more, click on this link] that may stand for:
		The partial thromboplastin time (ptt) or activated partial thromboplastin time (aptt) is a commonly performed test for the system of coagulation, especially...
		Push to talk, commonly abbreviated as ptt, is a method of conversing on half-duplex communication lines, by pushing a button in order to send, allowing voice communication...
	www.absoluteastronomy.com /encyclopedia/p/pt/ptt2.htm (95 words)

	PTT fibres
		The PTT fiber is considered to be the most important fiber of the after-polyester period, and they (Shell) think to reach a production of over one million tons, also including those products that are different from fibers.
		PTT unifies the main and best characteristics of nylon and polyester for the most disparate applications, even if today the most characteristic ones concern carpets and car- and house-fittings.
		As regards to other synthetic fibers, PTT ones are softer, are easier to be dyed, keep vivid colours longer, lose their shape easier and as easier go back to their original shape.
	www.technica.net /NF/NF1/efibreptt.htm (1084 words)

	Search Results: ptt - ABCNEWS.com
		And Lowenstein notes that Kodiak's PTT scheme is at a distinct disadvantage compared to the other solutions: The system has yet to go from Kodiak labs to an...
		Swisscom a spinoff of the old state-owned PTT, and still majority owned by the government said sales were 2.38 billion francs ($1.94 billion), down 2.9 percent...
		PTT provide a full range of e-learning development services from setting of training objectives, through...
	infospace.abcnews.com /_1_ZU5T7O03GG6FHY__info.abcnws/dog/results?otmpl=dog/webresults.htm&qcat=web&ran=&qkw=ptt (442 words)

	PTT? – the term's been in use for 45 years
		PTT is an industry term for probably the last 30-40 years in the US.
		The first Push-To-Talk (PTT) transmission was likely as early as that by Reginald Fessenden on December 23, 1900.
		The problem that Mr Boozer might have with his complaint is prior use of the term Push-to-Talk, as well as the abbreviation.
	www.theinquirer.net /?article=19015 (378 words)

	Commentary 4Mobility
		With private two-way direct dispatch, the PTT switch itself turns on the transmitter and all other radios on the system are in receive mode on the same channel, so units do not have to be identified and paths do not have to be created.
		Cingular probably won't offer PTT phones for its analog users since it is looking forward to the day when they will all be moved to digital, but since it uses voice channels it could, and it could offer the service over its TDMA network.
		Verizon is still offering its VoIP PTT service and while it won't release subscriber numbers, my own seat-of-the-pants research shows that sales people in the stores (or at least in twenty stores in various parts of the country) will only sell PTT when specifically asked about it.
	www.outlook4mobility.com /commentary2005/dec0605.htm (1875 words)

	ptt
		PTT helps fund programs and activities such as Accelerated Reader, Choices (for fifth grade young women and their mothers), educational assemblies, Presidential Recognition Awards, classroom games and incentives, field trips, and the purchase of books for the children's enjoyment and learning at Periwinkle Elementary School.
		PTT is able to purchase these cards at a discount, and by selling them to you at face value, we are able to keep the difference for PTT.
		Messages for PTT may be left with the office staff, or email the PTT at periwinkleptt@earthlink.net.
	albany.k12.or.us /periwinkle/ptt.php (401 words)

	Serbian Post » Services » PTT Net
		PTT Serbia Net, as Internet service provider of PTT Serbia, represents from its very establishment in 1998, a leader in the field of state-of-the-art technologies within its mother company.
		Present PTT Net is the greatest provider in the country offering a wide range of possibilities for application of Internet technologies, for both 160000 registered natural persons, and 5000 registered legal persons.
		All additional information on PTT Net and services offered to physical and legal persons, are available at the Internet address - www.ptt.yu.
	www.posta.co.yu /english/uslugeicene/pttnet.asp (417 words)

	Serbian Post » Home Page » Welcome
		Public Enterprise of PTT Communications "Srbija" is the oldest communicational infrastructure system in Serbia, and a true leader on the market of transport and delivery of written and printed documents, goods, as well as all money postal items and intermediary services.
		PTT Net is the major provider in the country, offering to its customers a wide range of possibilities for the application of Internet technologies for 150 000 registered physical persons, as well as for the 4 960 registered legal persons.
		The tasks have to be performed and information presented to all interested persons, employees of the enterprise or parties – physical or legal persons, in a most appropriate and secure manner, 24 hours a day – what is, in fact, the very essence of CePP operations.
	www.posta.co.yu /english (255 words)

	Battling PTT's Lackluster Performance - 3/15/2005 - Wireless Week - CA510492 (Site not responding. Last check: 2007-11-04)
		Enhance and Relaunch The subscriber take-up rate of PTT has been lackluster, but the revenue generated by this service – which is priced anywhere from $5 to $20 in addition to a typical monthly rate plan – is noteworthy, and it may be enough to convince other operators to launch the service.
		One of the advantages that Kodiak has touted about its system is this: As long as the person initiating the PTT call is using the Kodiak Real-Time Exchange System and a compatible handset, he or she can connect with any other wireless or even wireline user, regardless of their carrier or their handset.
		The logic behind this, according to Jacobson, is many of the PTT adopters also are big data users, so they want to their handsets to be as functional as possible.
	www.wirelessweek.com /article/CA510492.html?text=sonim&stt=001 (1529 words)

	Pt / Ptt: Blood Tests
		Prothrombin time (PT) and partial thromboplastin time (PTT) tests are used to evaluate the extrinsic coagulation system.
		This test is used to evaluate the adequacy of the extrinsic system and common pathway in the clotting mechanism.
		PTT is used to screen for the presence of dysfibrinogenemia, disseminated intravascular coagulation, liver failure, congenital hypofibrinogenemia, vitamin K deficiency, congenital deficiency of Fitzgerald factor, congenital deficiency of prekallikrein, high molecular weight kininogen, and circulatory anticoagulant.
	www.lef.org /newshop/items/itemLC020321.html (216 words)

	TreoCentral.com - Will SprintPCS version of Treo 600 support PTT?
		PTT is half-duplex, meaning communication can only travel in one direction at any given moment.
		To control which person can speak and be heard, PTT requires the person speaking to press a button while talking and then release it when they are done.
		My guess is that if PTT takes off for Sprint, and Handspring/Palm feel that they could sell more Treos by adding this feature, then they will develop at least a software solution for the 600, and incorporate a dedicated key in the next version.
	discuss.treocentral.com /archive/index.php/t-34861.html (2318 words)

	NPTL Trace Tool Project
		PTT can be used on several 32 or 64 bits architectures, among which are Intel 32 bits, Intel 64 bits and PowerPC.
		PTT reliability is tested using the Open POSIX Tests Suite (OPTS), which checks the POSIX conformance of a library.
		Measures have shown that this impact on performance is very low, even when a lot of threads are involved (less than 5% with 16 concurrent threads on 8xia32).
	nptltracetool.sourceforge.net (510 words)

	XChange - Cingular Launches PTT
		The PTT service is powered by Kodiak Networks’ Real-Time Exchange platform, the same company that powers Orange's PTT solution in Europe, Alltel's in the United States and the soon-to-launch AMP'd MVNO stateside.
		One hurdle for widespread PTT use is a lack of intercarrier agreements.
		The wide develoment of PTT is a good thing to the cellular world and to have a system that competes with the idea of nextel and maybe a step further is a necessity to drive forward if nextel/sprint are the only ones with it there is no drive to be the best!!!!
	xchangemag.com /hotnews/5ch5135750.html?...&hc=522&req=cingular (661 words)

	learntelecoms - telecoms and datacoms e-learning training courses online or on CDROM
		PTT's extensive range of easy to use, interactive learntelecoms e-learning courses cover all aspects of modern telecommunications and datacoms networks.
		PTT offers blended learning solutions for both training providers and training managers.
		PTT also provides an e-learning course development service - from setting of training objectives, through course design to learning management.
	www.learntelecoms.com (153 words)

	PCWorld.com - Dialed In: Push to Talk: Walkie-Talkie Phone Service
		PTT is meant to be quicker and more efficient than regular phone calls, and it lets you converse one-on-one or among a group of users simultaneously--typically five or more, depending on the carrier.
		To make a PTT call, you press a special button, which is usually located on the side of the phone near the volume control.
		When the PTT call goes through, the phone indicates that the floor is open.
	www.pcworld.com /resource/article/0,aid,114640,00.asp (1312 words)

	No. 1: PTT
		When PTT was created four years ago by privatizing the state-owned Petroleum Authority of Thailand, managers could have sat back and let the money roll in.
		Today, PTT and its listed subsidiaries account for 28% of total market capitalization of the Stock Exchange of Thailand.
		PTT has more than tripled its profits since then -- and only part of the gain is from higher oil prices.
	businessweek.com /magazine/content/05_43/b3956410.htm?... (478 words)

	Unstrung - Fixed/Mobile Convergence - Cingular Gets PTT - Wireless Networking News Wire
		While Sprint Nextel's iDEN based PTT technology is considered the benchmark for PTT in terms of call setup time and low latency, Kodiak's technology has proved to be a competitive solution.
		Cingular's PTT will also likely be very popular in the fast growing "family-plans" segment where multiple phones are added to a single account and share minutes between family members.
		PTT on Cingular's network, powered by Kodiak, creates a competitive environment in which three out of four of the United States' Tier I mobile network operators now offer a solution for customers that wish to have a instant-chat and conference solution.
	www.unstrung.com /document.asp?doc_id=85092&WT.svl=wire1_6 (786 words)

	PTT Cable
		AGWPE will generate the transmit audio, but you also need a way to open the radio's PTT circuit so that the audio can be transmitted.
		uild a cable with an isolated 'gate' circuit that opens the radio's PTT circuit when it receives a signal from the serial or parallel port.
		The reliability of these devices is also sometimes influenced by the brand of chipset used to implement the USB port inside your computer, and the version and patch level of Windows you are using.
	www.patmedia.net /ralphmilnes/soundcardpacket/1cableptt.htm (1760 words)

	PTT Inc.
		You can also purchase a handout that explains all of the code as well as providing password access to the code to help you learn more about VBA within PowerPoint.
		If you would like to learn more, please feel free to contact PTT, Inc. at info@pttinc.com.
		PTT, Inc. shall not be held responsible for any problems you incur!
	www.pttinc.com /ppgame.htm (424 words)

	Planet Think Tanks - News (Site not responding. Last check: 2007-11-04)
		The PTT servers have had their bandwidth upgraded once again.
		I dropped into PTT Survivor and from what I could tell there was almost no lag.
		All those who were using Nickname protection for PTT servers will however have to turn it on again on their profile pages.
	planetthinktanks.com (4993 words)

	Argos Satellite transmitter info
		Depending on your application, we can combine the PPT with a data logger and/or a VHF transmitter for local area tracking (for recovery of tag).
		The basic function common to all products with PTTs is to provide location in latitude and longitude from any place in the world on a mobile or stationary animal or other platform.
		Also, the Argos satellite PTT is available in a minimally-casted form with antenna and battery for users wishing to build their own finished systems.
	www.habitresearch.com /satellitetransmitters.html (200 words)

	PTT Post Selects Openlink Software (Site not responding. Last check: 2007-11-04)
		The Information Technology department of PTT Post Netherlands, part of the TNT Post Group and one of the worlds' four global players in mail, express and logistics selects OpenLink Universal Data Access drivers for its Order entry application for batched delivered mail.
		PTT Post's Dutch infrastructure for sorting and distributing of postal items, constitute the core of PTT Post's largest business units, dealing with more than 22 million postal items each day.
		PTT Post currently use OpenLink's drivers for an average of 500 connections everyday and the product is expected to be used company wide.
	www.openlinksw.com /press/pttpost.htm (371 words)

	Ptt - bluefreesky.com Info About Ptt (Site not responding. Last check: 2007-11-04)
		Be Hands Free has push-to-talk (PTT) headsets and car-kits for Sprint Nextel phones.
		The new PTT is the next generation of Mountz hand-held torque analyzer.
		In the race to increase average revenue per user and reduce churn, carriers everywhere are looking to PTT.
	bluefreesky.com /bf/ptt.html (245 words)

	PTT Ericofons
		The red PTT with the fl dial has to be one of the most beautiful Ericofons ever made.
		The reds I sell are true PTT red, not Swedish reds on a PTT chassis.
		Same goes for the brown, they are true PTT browns (all phones I sell are true to form).
	www.ericofon.com /sale/ericofons/sale_ptt.htm (279 words)

	Cingular and Pust To Talk ( PTT ) Service » Girl Geekette dotNet (Site not responding. Last check: 2007-11-04)
		As of now, charges for the PTT service will add an additional $9.99 a month for unlimited minutes.
		Although the actual service may be delayed to begin in November, this new service for Cingular will be a landmark in the Untied States.
		You are currently browsing an entry titled Cingular and Pust To Talk (PTT) Service from the Girl Geekette dotNet weblog archives.
	www.girlgeekette.net /2005/10/08/cingular-and-pust-to-talk-ptt-service (411 words)

	Motorola Unveils PTT Phones for GSM
		The new Motorola V400p is the only quad-band GSM push-to-talk handset that elegantly combines a high-quality speakerphone, dedicated push-to-talk user interface and one-touch button with the most on-demand mobile features including an integrated camera, downloading capabilities and MP3 ringtones.
		For the consumer who demands a lot from their phone, the model T300p sports a rugged design to withstand rough conditions, a dedicated push-to-talk button and user interface for easy communications and an integrated speakerphone for hands-free use.
		For the consumer who craves a bit more elegance, the new Motorola V65p offers PTT communication combined with a sleek metal housing and color screen.
	mobilemag.com /content/100/340/C2474 (487 words)

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