By Ivan I. Mueller (auth.), Gerald L. Mader (eds.)
ISBN-10: 0387558276
ISBN-13: 9780387558271
ISBN-10: 3540558276
ISBN-13: 9783540558279
ISBN-10: 3642777260
ISBN-13: 9783642777264
Read Online or Download Permanent Satellite Tracking Networks for Geodesy and Geodynamics: Symposium No. 109 Vienna, Austria, August 11–24, 1991 PDF
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Read e-book online FreeSWITCH 1.2 (2nd Edition) PDF
Build strong, high-performance telephony structures utilizing FreeSWITCH.
Overview
• how to set up and configure an entire telephony process of your personal, no matter if this can be your first time utilizing FreeSWITCH.
• In-depth discussions of vital suggestions just like the dialplan, consumer listing, NAT dealing with, and the strong FreeSWITCH occasion socket.
• most sensible practices and specialist information from the FreeSWITCH specialists, together with the author of FreeSWITCH, Anthony Minessale.
In element
FreeSWITCH is an open-source telephony platform designed to facilitate the construction of voice and chat-driven items, scaling from a soft-phone to a PBX or even as much as an enterprise-class soft-switch. it really is constantly fascinating to layout and construct your individual telephony process to fit your wishes, however the activity is time-consuming and comprises loads of technical skill.
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You will commence with a close description of the FreeSWITCH method structure. Thereafter you are going to obtain step by step directions on the way to arrange simple and complex positive aspects to your telephony platform.
The booklet starts through introducing the structure and workings of FreeSWITCH sooner than detailing easy methods to plan a cellphone approach after which strikes directly to the install, configuration, and administration of a feature-packed PBX. you'll find out about conserving a consumer listing, XML dial plan, and complicated dial plan suggestions, name routing, and the tremendous robust occasion Socket. you'll eventually find out about the net group and historical past of FreeSWITCH.
FreeSWITCH 1. 2 is an imperative software for amateur and professional alike.
What you are going to research from this book
• organize a simple procedure to make and obtain telephone calls, make calls among extensions, and make the most of uncomplicated PBX functionality.
• install assorted beneficial properties of this telephony procedure with most sensible practices and specialist tips.
• comprehend the interior workings and structure of FreeSWITCH.
• Use complicated beneficial properties to create robust dialplans.
• conquer challenging NAT issues.
• regulate FreeSWITCH remotely with the strong occasion socket.
• Create web-controlled telephony apps with the hot HTTAPI system.
• safe your VoIP communications.
Approach
This publication is stuffed with useful code examples geared toward a newbie to ease his or her studying curve.
Who this ebook is written for
This booklet is written for IT execs and fans who're attracted to speedy getting a robust telephony approach up and working utilizing the loose and open resource software, FreeSWITCH.
Telephony event may be beneficial, yet now not required.
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Extra info for Permanent Satellite Tracking Networks for Geodesy and Geodynamics: Symposium No. 109 Vienna, Austria, August 11–24, 1991
Example text
B Observables The GPS receivers should produce radiometric observables from at least 8 GPS satellites (when available) simultaneously and continuously. This is nearly the maximum number of satellites that will be above 15° elevation at one time. Tracking eight satellites allows the ground receivers to operate under a selection algorithm that requires little or no coordination between other ground stations. c Accuracy The accuracy of the observables is dependent on the GPS receiver type and varies with manufacturer and model.
This requirement is especially important for kinematic and rapid static surveys for densification. Antenna phase center locations to be used for mmlevel geodetic work shall be estimated with two independent techniques: (a) anechoic chamber tests and (b) antenna rotation and swap tests. a Media Calibrations It is important to note that applications of meteorological measurements and calibrations currently vary according to analysis and post-processing techniques. 5 mbar should be available for pressure measurements.
The rationale for a "Common, Global, Integrated, Fundamental Network", has been discussed by Knickmeyer (1990) and Boucher (1990). Space geodesy tends to adopt a global perspective. However, current SLR and VLBI global networks (including the Soviet QUASAR network) do not offer uniform coverage. Recent deployments, such as DORIS, PRARE, and the rapidly growing CIGNET and DSN GPS networks, are both global and quite uniform by design. g. G01EX, GIG'91), providing valuable experience. Although our focus is on geodetic networks, we note that other disciplines dealing with solid earth science are actively building global networks of their own.
Permanent Satellite Tracking Networks for Geodesy and Geodynamics: Symposium No. 109 Vienna, Austria, August 11–24, 1991 by Ivan I. Mueller (auth.), Gerald L. Mader (eds.)
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