{"id":8185,"date":"2016-09-14T11:15:57","date_gmt":"2016-09-14T16:15:57","guid":{"rendered":"https:\/\/www.servimatango.com\/blog\/?p=8185"},"modified":"2019-06-07T11:13:05","modified_gmt":"2019-06-07T16:13:05","slug":"fundamentos-de-los-servicios-de-voip-y-toip","status":"publish","type":"post","link":"https:\/\/servervoip.com\/blog\/fundamentos-de-los-servicios-de-voip-y-toip\/","title":{"rendered":"Fundamentos de los servicios de VoIP y ToIP"},"content":{"rendered":"<p>Voz sobre IP (VoIP, Voice over IP) es un grupo de recursos que hacen posible que la se\u00f1al de voz viaje a trav\u00e9s de redes TCP\/IP. El tr\u00e1fico de VoIP puede circular por cualquier red TCP\/IP, incluyendo aquellas conectadas a Internet. Esto signi_ca que se env\u00eda la se\u00f1al de voz (digitalizada) en paquetes, en lugar de enviarla (en forma digital o anal\u00f3gica) a trav\u00e9s de circuitos utilizables s\u00f3lo para telefon\u00eda como en la RTPC\/PSTN (Red Telef\u00f3nica P\u00fablica Conmutada\/Public Switched Telephone Network ).<\/p>\n<p>Telefon\u00eda sobre IP (ToIP, Telephony over IP) es el conjunto de nuevas funcionalidades de telefon\u00eda que se pueden ofrecer gracias al env\u00edo de la voz sobre el protocolo IP en redes de datos TCP\/IP.<\/p>\n<p>La voz ha de digitalizarse para ser transmitida por la red IP. Para ello se hace uso de c\u00f3decs que realizan la codi_caci\u00f3n y compresi\u00f3n del audio antes de su transmisi\u00f3n, y  luego su decodi_caci\u00f3n y descompresi\u00f3n en recepci\u00f3n, para entregar una se\u00f1al audible. Seg\u00fan el c\u00f3dec empleado en la transmisi\u00f3n, se utilizar\u00e1 m\u00e1s o menos ancho de banda y recursos del sistema de c\u00f3mputo. La cantidad de ancho de banda utilizado suele ser  directamente proporcional a la calidad de los datos transmitidos. Entre los c\u00f3decs m\u00e1s comunes se encuentran los siguientes:<\/p>\n<p>\u2022\tG.711: Est\u00e1ndar de la UIT-T para la digitalizaci\u00f3n de audio en telefon\u00eda _ja. Representa las se\u00f1ales de audio mediante muestras codi_cadas en una se\u00f1al digital con tasa de muestreo de 8.000 muestras por segundo con un _ujo de datos de 64 kbps. Existen dos tipos:<\/p>\n<p>&#8211;\tLey _: Usado sobre todo en Norte Am\u00e9rica y Jap\u00f3n. Se basa en un algoritmo de compresi\u00f3n logar\u00edtmico de 16 segmentos para representar cada muestra en palabras de 8 bits.<br \/>\n&#8211;\tLey A: Usado en Europa y en el resto del mundo. Se basa en un algoritmo de compresi\u00f3n logar\u00edtmico de 14 segmentos para representar cada muestra en palabras de 8 bits.<\/p>\n<p>\u2022\tG.723.1: Est\u00e1ndar de la UIT-T que comprime la voz en tramas de 30 ms y opera a 5,3 y 6,3 kbps.<\/p>\n<p>\u2022\tG.726: Est\u00e1ndar de la UIT-T basado en ADPCM (Adaptative Di_erential Pulse Code Modulation). Permite trabajar con velocidades de 16, 24, 32 y 40 kbps. Este c\u00f3dec proporciona una disminuci\u00f3n considerable del ancho de banda sin aumentar en gran medida la carga computacional.<\/p>\n<p>\u2022\tG.729: Est\u00e1ndar de la UIT-T usado sobre todo en aplicaciones de VoIP por los bajos requerimientos en ancho de banda. Opera con tasas de 8 kbps pero existen extensiones para tasas de 6,4 y 11,8 kbps para peor o mejor calidad de  voz respectivamente.<\/p>\n<p>\u2022\tGSM (Global System for Mobile Communications ): Familia de c\u00f3decs para telefon\u00eda m\u00f3vil estandarizados por el ETSI. En VoIP se ha venido usando el GSM FR (Full Rate), estandarizado como GSM 06.10, que tiene una implementaci\u00f3n libre  y opera a 13 kbps con una carga de CPU aceptable. En telefon\u00eda m\u00f3vil se est\u00e1n imponiendo versiones mejoradas como el GSM AMR (Adaptive Multi-Rate), que ofrece 8 tasas de operaci\u00f3n entre 4,75 y 12,2 kbps.<\/p>\n<p>\u2022\tiLBC (Internet Low Bit rate Codec ): Es un c\u00f3dec libre que implementa un algoritmo complejo desarrollado por Global IP Sound (GIPS), el cual ofrece una buena relaci\u00f3n ancho de banda\/calidad de voz a cambio de una mayor carga computacional. Opera a 13,3 y 15,2 kbps.<\/p>\n<p>\u2022\tSpeex: Es un c\u00f3dec libre para voz3 que implementa un algoritmo capaz de variar la velocidad de transmisi\u00f3n dependiendo de las condiciones actuales de la red (VBR: Variable Bit Rate). El ancho de banda puede variar desde 2,15 a 22,4 kbps.<\/p>\n<p>En la actualidad no es posible garantizar la calidad de servicio de VoIP sobre Internet porque se presentan diversos problemas de retardos; pero en redes LAN s\u00ed es posible controlar en cierto grado estos problemas. La m\u00e1xima latencia (tiempo transcurrido desde el instante en que se genera un paquete hasta que se recibe) aceptable en VoIP es de 300 ms ida y vuelta (150 ms en cada direcci\u00f3n). Para lograr una mejor calidad de servicio se emplean los siguientes criterios:<\/p>\n<p>\u2022\tSupresi\u00f3n de silencios, que otorga m\u00e1s e_ciencia a la hora de realizar una transmisi\u00f3n de voz, ya que se aprovecha mejor el ancho de banda al transmitir menos informaci\u00f3n.<\/p>\n<p>\u2022\tCompresi\u00f3n de cabeceras aplicando los est\u00e1ndares RTP\/RTCP (Real-time Transport Protocol\/Real-time Transport Control Protocol ).<\/p>\n<p>\u2022\tPriorizaci\u00f3n de los paquetes que requieran menor latencia.<\/p>\n<p>Tomado de: https:\/\/eciencia.urjc.es\/bitstream\/handle\/10115\/5939\/vozsobreip.pdf?sequence=1<\/p>\n<p>\n<div id=\"rev_slider_3_1_wrapper\" class=\"rev_slider_wrapper fullwidthbanner-container\" style=\"float:left;background-color:#E9E9E9;padding:0px;margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:0px;\">\n<!-- START REVOLUTION SLIDER 5.0.9 auto mode -->\n\t<div id=\"rev_slider_3_1\" class=\"rev_slider fullwidthabanner\" style=\"display:none;\" data-version=\"5.0.9\">\n<ul>\t<!-- SLIDE  -->\n\t<li data-index=\"rs-28\" data-transition=\"random\" data-slotamount=\"7\"  data-easein=\"default\" data-easeout=\"default\" data-masterspeed=\"300\"  data-thumb=\"\"  data-rotate=\"0\"  data-saveperformance=\"off\"  class=\"voipswitch videos subtitulos\" id=\"voipswitch videos subtitulos\" voipswitch videos subtitulos data-title=\"SubtitulosTexto\" data-description=\"\">\n\t\t<!-- MAIN IMAGE -->\n\t\t<img src=\"https:\/\/servervoip.com\/blog\/wp-content\/plugins\/revslider\/admin\/assets\/images\/dummy.png\"  alt=\"\"  width=\"879\" height=\"51\" data-lazyload=\"https:\/\/servervoip.com\/blog\/wp-content\/plugins\/revslider\/admin\/assets\/images\/transparent.png\" data-bgposition=\"center top\" data-bgfit=\"cover\" data-bgrepeat=\"no-repeat\" class=\"rev-slidebg\" data-no-retina>\n\t\t<!-- LAYERS -->\n\n\t\t<!-- LAYER NR. 1 -->\n\t\t<div class=\"tp-caption   tp-resizeme\" \n\t\t\t id=\"slide-28-layer-2\" \n\t\t\t data-x=\"\" \n\t\t\t data-y=\"1\" \n\t\t\t\t\t\tdata-width=\"['none','none','none','none']\"\n\t\t\tdata-height=\"['none','none','none','none']\"\n\t\t\tdata-transform_idle=\"o:1;\"\n \n\t\t\t data-transform_in=\"opacity:0;s:300;e:Power2.easeInOut;\" \n\t\t\t data-transform_out=\"opacity:0;s:300;s:300;\" \n\t\t\tdata-start=\"500\" \n\t\t\tdata-responsive_offset=\"on\" \n\n\t\t\t\n\t\t\tstyle=\"z-index: 5;\">\n\t\t\t\t<div class=\"rs-looped disabled\" ><img src=\"https:\/\/servervoip.com\/blog\/wp-content\/plugins\/revslider\/admin\/assets\/images\/dummy.png\" alt=\"\" data-ww=\"879\" data-hh=\"51\" data-lazyload=\"https:\/\/www.servervoip.com\/blog\/wp-content\/uploads\/2015\/10\/fondo-en-degradado-con-signod-copia.jpg\" data-no-retina> \n\t\t\t\t<\/div>\n\t\t<\/div>\n\n\t\t<!-- LAYER NR. 2 -->\n\t\t<div class=\"tp-caption mediumbgorange   tp-resizeme\" \n\t\t\t id=\"slide-28-layer-1\" \n\t\t\t data-x=\"6\" \n\t\t\t data-y=\"5\" \n\t\t\t\t\t\tdata-width=\"['653']\"\n\t\t\tdata-height=\"['41']\"\n\t\t\tdata-transform_idle=\"o:1;\"\n \n\t\t\t data-transform_in=\"opacity:0;s:300;e:Power3.easeInOut;\" \n\t\t\t data-transform_out=\"auto:auto;s:300;\" \n\t\t\tdata-start=\"500\" \n\t\t\tdata-splitin=\"none\" \n\t\t\tdata-splitout=\"none\" \n\t\t\tdata-responsive_offset=\"on\" \n\n\t\t\t\n\t\t\tstyle=\"z-index: 6; 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htmlDiv = document.getElementById('rs-plugin-settings-inline-css');\r\n\t\t\t\t\tif(htmlDiv) {\r\n\t\t\t\t\t\thtmlDiv.innerHTML = htmlDiv.innerHTML + htmlDivCss;\r\n\t\t\t\t\t}\r\n\t\t\t\t\telse{\r\n\t\t\t\t\t\tvar htmlDiv = document.createElement('div');\r\n\t\t\t\t\t\thtmlDiv.innerHTML = '<style>' + htmlDivCss + '<\/style>';\r\n\t\t\t\t\t\tdocument.getElementsByTagName('head')[0].appendChild(htmlDiv.childNodes[0]);\r\n\t\t\t\t\t}\r\n\t\t\t\t  <\/script>\r\n\t\t\t\t<\/div><!-- END REVOLUTION SLIDER --><br \/>\n&nbsp;<\/p>\n<hr \/>\n<h2>Telefon\u00eda VoIP con SoftSwitch<\/h2>\n<p><strong>ServerVoIP<\/strong> te proporciona todas las herramientas necesarias para que crees y desarrolles <strong>tu negocio de comunicaci\u00f3n por internet.<\/strong><\/p>\n<p>Pertenece al Selecto Grupo de Emprendedores que decidieron cambiar su vida invirtiendo en un <strong>Server con ServerVoIP.<\/strong><\/p>\n<p><a href=\"http:\/\/www.servervoip.com\/voipswitch-pagos\"><img loading=\"lazy\" src=\"https:\/\/www.servimatango.com\/blog\/wp-content\/uploads\/2015\/08\/tarjeta1-292x300.png\" alt=\"empresario\" width=\"292\" height=\"300\" class=\"aligncenter size-medium wp-image-4092\" \/><\/a><br \/>\n[st_button button_text=\u00bb SOLICITA TU SERVER AHORA \u25ba\u00bb button_type_url=\u00bbhttp:\/\/www.servervoip.com\/voipswitch-comprar.php?server=50_promo\u00bb open_in=\u00bbnew_window\u00bb icon=\u00bbfa fa-shopping-cart\u00bb button_alignment=\u00bbcenter\u00bb button_margin_top=\u00bb-50&#8243; button_margin_bottom=\u00bb-20&#8243; button_size=\u00bbbtn-lg\u00bb button_color=\u00bbbtn-blue\u00bb appearing_animation=\u00bbfade_in\u00bb wrapper_padding_top=\u00bb0&#8243; wrapper_padding_left=\u00bb0&#8243; wrapper_padding_bottom=\u00bb0&#8243; wrapper_padding_right=\u00bb0&#8243; wrapper_bg_opacity_slider=\u00bb\u00bb id_wrapper=\u00bbelm_5c828b1b09d7d\u00bb ][\/st_button]<br \/>\n&nbsp;<\/p>\n<p><strong>ServerVoip <\/strong>presenta el mejor server fisico dedicado para telefonia voip que incluye el software de telefon\u00eda ip \u00abVoipSwitch\u00bb especial para voz sobre ip.<\/p>\n<p><strong>VoipSwitch <\/strong>es la plataforma ideal para que sin necesidad de conocimientos t\u00e9cnicos crees tu propia empresa de Telefon\u00eda IP VoIP y encuentres una forma de ganar DINERO en la red siendo carrier de telefon\u00eda sobre Ip (Voip). <\/p>\n<p>Te brindamos todas las herramientas para que est\u00e9s al nivel de las grandes empresas y negocios; puedas obsequiar llamadas gratis como estrategia de marketing en fidelizaci\u00f3n a tus clientes \/ free entre tus clientes; el servidor VoIP te permite utilizar m\u00faltiples proveedores como nosotros tenemos <a href=\"http:\/\/www.alosip.com\/\" target=\"_blank\"  rel=\"noopener noreferrer\">www.alosip.com.<\/a>  (carrier \/ routes) para un mismo destino, vender terminaci\u00f3n (wholesale), clientes finales (retail), etc.<\/p>\n<p>El software te proporciona todo lo que necesitas; sistema llave en mano: para crear tu empresa de telefon\u00eda IP (VoIP) bajo tu propio nombre o marca. M\u00e1s informaci\u00f3n en  <a href=\"http:\/\/marcablanca.servervoip.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">marcaBlanca.servervoip.com<\/a><\/p>\n<p>Para que CREES y DESARROLLES tu propia empresa de telefonia por internet, revisa m\u00e1s detalles en <a href=\"http:\/\/www.servervoip.com\/voipswitch\/\" >VoIPSwitch<\/a><\/p>\n<hr \/>\n<h1 style=\"text-align: center;\">\u00bfQuieres Emprender por Internet?<\/h1>\n<h3 style=\"text-align: center;\">\u00abAhora Trabajar desde la Comodidad de tu Casa y Ganar Dinero por Internet&#8230; Nunca Hab\u00eda Sido tan F\u00e1cil, R\u00e1pido y con RESULTADOS Impresionantes\u00bb<\/h3>\n<p style=\"text-align: center;\">Descubre el NEGOCIO Perfecto y convi\u00e9rtete en un EMPRESARIO de \u00c9xito creando y desarrollando tu Propia Empresa de Telefon\u00eda por Internet. <strong>Suscr\u00edbete y RECIBE FREE<\/strong>:<\/p>\n<h2 style=\"text-align: center;\">\u00a1Sie7e Poderosas Razones Que Tiene el EMPRENDEDOR Exitoso para Crear su Propia Empresa de Telefon\u00eda por Internet VoIP!&#8230;<\/h2>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-1229 size-medium\" src=\"http:\/\/servimatango.com\/negocios-rentables\/wp-content\/uploads\/2015\/07\/libro-server-voip-241x300.png\" alt=\"libro server voip\" width=\"241\" height=\"300\" \/><br \/>\n[st_accordion div_margin_bottom=\u00bb15&#8243; initial_open=\u00bb0&#8243; multi_open=\u00bbyes\u00bb wrapper_padding_top=\u00bb0&#8243; wrapper_padding_left=\u00bb0&#8243; wrapper_padding_bottom=\u00bb0&#8243; wrapper_padding_right=\u00bb0&#8243; wrapper_bg_opacity_slider=\u00bb\u00bb wrapper_bg_opacity=\u00bb50&#8243; wrapper_border_style=\u00bboutset\u00bb wrapper_rounded_topleft=\u00bb3&#8243; id_wrapper=\u00bbelm_5c828b0bd3fa6&#8243; ][st_item_accordion heading=\u00bb<img class=aligncenter src=http:\/\/servimatango.com\/negocios-rentables\/wp-content\/uploads\/2015\/07\/Boton-descarga-reporte.gif alt=Reporte width=500 height=145 \/>\u00bb id_wrapper=\u00bbelm_5c828b0bd3f58&#8243; ]<center><script type=\"text\/javascript\" src=\"http:\/\/app.getresponse.com\/view_webform.js?wid=10619501&#038;u=kSvx\"><\/script><\/center>[\/st_item_accordion][\/st_accordion]<\/p>\n<p><a href=\"https:\/\/www.servimatango.com\/blog\/bancos-en-ecuador\/\">Bancos en Ecuador para Alquilar un VoIPSwitch Server<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voz sobre IP (VoIP, Voice over IP) es un grupo de recursos que hacen posible que la se\u00f1al de voz viaje a trav\u00e9s de redes TCP\/IP. El tr\u00e1fico de VoIP puede circular por cualquier red TCP\/IP, incluyendo aquellas conectadas a Internet. Esto signi_ca que se env\u00eda la se\u00f1al de voz (digitalizada) en paquetes, en lugar&#8230;<\/p>\n<p><a class=\"excerpt-read-more btn btn-primary\" href=\"https:\/\/servervoip.com\/blog\/fundamentos-de-los-servicios-de-voip-y-toip\/\" title=\"ReadFundamentos de los servicios de VoIP y ToIP\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":8186,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"image","meta":[],"categories":[13],"tags":[],"_links":{"self":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/posts\/8185"}],"collection":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/comments?post=8185"}],"version-history":[{"count":0,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/posts\/8185\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/media\/8186"}],"wp:attachment":[{"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/media?parent=8185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/categories?post=8185"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/servervoip.com\/blog\/wp-json\/wp\/v2\/tags?post=8185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}