{"id":11455,"date":"2025-02-20T16:19:27","date_gmt":"2025-02-20T13:19:27","guid":{"rendered":"https:\/\/vasexperts.com\/?p=11455"},"modified":"2025-08-11T14:13:28","modified_gmt":"2025-08-11T11:13:28","slug":"implementation-of-epdg-from-vas-experts-in-mvno-miatel","status":"publish","type":"post","link":"https:\/\/vasexperts.com\/br\/blog\/mobile-networks\/implementation-of-epdg-from-vas-experts-in-mvno-miatel\/","title":{"rendered":"Implementa\u00e7\u00e3o do EPDG da VAS Experts no MVNO Miatel"},"content":{"rendered":"<h2>Objetivos da Implementa\u00e7\u00e3o do WiFi Calling<\/h2>\r\nA principal base de clientes da Miatel \u00e9 composta por empresas que exigem alta qualidade de comunica\u00e7\u00e3o e operam em condi\u00e7\u00f5es geogr\u00e1ficas espec\u00edficas.\r\nO principal objetivo da implementa\u00e7\u00e3o do    <strong>  EPDG   <\/strong>   foi garantir comunica\u00e7\u00e3o de voz est\u00e1vel em \u00e1reas com acesso limitado a certas frequ\u00eancias da rede m\u00f3vel. O uso de    <strong>  VoLTE e VoWiFi   <\/strong>   permite manter o servi\u00e7o de voz mesmo em locais onde as redes do operador s\u00e3o inst\u00e1veis ou completamente indispon\u00edveis.\r\n\r\nEm resposta \u00e0s solicita\u00e7\u00f5es dos clientes, a empresa inicialmente introduziu o    <strong>  VoLTE   <\/strong>   e, em seguida, o    <strong>  WiFi Calling (VoWiFi)   <\/strong>  . Ambos os servi\u00e7os compartilham requisitos semelhantes para os sistemas de informa\u00e7\u00e3o e os processos de implementa\u00e7\u00e3o, o que facilitou a ado\u00e7\u00e3o do VoWiFi devido \u00e0 experi\u00eancia adquirida com o    <strong>  VoLTE   <\/strong>  .\r\n\r\n[product id=\u201d9506\u2033 type=\u201ddark\u201d]\r\n<h2>Desafios da Implementa\u00e7\u00e3o<\/h2>\r\nO    <strong>  produto EPDG da VAS Experts   <\/strong>   estava pronto para opera\u00e7\u00e3o no final de 2023 e atendeu com sucesso aos padr\u00f5es e especifica\u00e7\u00f5es em testes de laborat\u00f3rio.\r\nInicialmente, a integra\u00e7\u00e3o da solu\u00e7\u00e3o na infraestrutura do operador parecia simples. No entanto, surgiram v\u00e1rios desafios durante a implementa\u00e7\u00e3o.\r\n\r\nO primeiro problema ocorreu ao obter o dom\u00ednio de servi\u00e7o    <strong>  EPDG   <\/strong>   junto \u00e0    <strong>  GSMA   <\/strong>  . A solicita\u00e7\u00e3o permaneceu sem resposta por um longo tempo, mas, ap\u00f3s uma comunica\u00e7\u00e3o persistente, o dom\u00ednio foi finalmente concedido. O certificado de seguran\u00e7a tamb\u00e9m n\u00e3o funcionou corretamente no in\u00edcio, revelando alguns detalhes que foram resolvidos gra\u00e7as ao esfor\u00e7o conjunto do operador e do fornecedor. Com a configura\u00e7\u00e3o do SIM como \u00faltimo passo, parecia que a conectividade seria estabelecida. No entanto, nessa etapa, descobriu-se que o telefone n\u00e3o reconhecia o novo dom\u00ednio no SIM e se recusava a conectar ao EPDG.\r\n\r\nIsso levou a uma investiga\u00e7\u00e3o aprofundada do sistema operacional Android, das configura\u00e7\u00f5es do fabricante e at\u00e9 mesmo do modem do telefone. Um documento RFC indicava que existem v\u00e1rias maneiras de configurar os par\u00e2metros da operadora em um telefone.\r\n\r\nAp\u00f3s meses de pesquisa, ficou claro que alguns modelos de telefone podiam ser configurados, mas   <strong>   n\u00e3o havia um m\u00e9todo universal\u2014cada modelo exigia uma configura\u00e7\u00e3o espec\u00edfica   <\/strong>  . Como resultado, a \u00fanica abordagem vi\u00e1vel, que a maioria dos operadores est\u00e1 gradualmente adotando, \u00e9 trabalhar diretamente com os fabricantes de dispositivos m\u00f3veis.\r\n\r\nNo entanto, interagir com fabricantes de celulares se mostrou um grande desafio. Grandes corpora\u00e7\u00f5es    <strong>  como Xiaomi, Huawei e Lenovo   <\/strong>   responderam lentamente \u00e0s solicita\u00e7\u00f5es de operadores menores. Quanto maior o operador, maiores as chances de obter uma resposta r\u00e1pida, acelerando significativamente o processo de configura\u00e7\u00e3o dos telefones e a ativa\u00e7\u00e3o do WiFi Calling.\r\n<h2>Resultados e Perspectivas Futuras<\/h2>\r\nApesar dos desafios encontrados, todas as barreiras t\u00e9cnicas e organizacionais foram superadas com sucesso.\r\n   <strong>  Durante o projeto:   <\/strong>  \r\n<ul>\r\n \t<li>O EPDG foi integrado \u00e0 infraestrutura do operador.<\/li>\r\n \t<li>Foi criada uma base de conhecimento para futura expans\u00e3o do servi\u00e7o.<\/li>\r\n \t<li>Foram estudadas as particularidades do funcionamento do VoWiFi em redes de operadoras virtuais.<\/li>\r\n<\/ul>\r\nA Miatel continua ampliando a lista de dispositivos compat\u00edveis e otimizando o servi\u00e7o. A implementa\u00e7\u00e3o do WiFi Calling representa um marco importante no desenvolvimento da infraestrutura de telecomunica\u00e7\u00f5es, oferecendo mais possibilidades para os assinantes.","protected":false},"excerpt":{"rendered":"<p>A colabora\u00e7\u00e3o entre a Miatel e a VAS Experts vem acontecendo h\u00e1 v\u00e1rios anos. Como parte dessa parceria, a operadora m\u00f3vel Miatel j\u00e1 utiliza as solu\u00e7\u00f5es da VAS Experts, incluindo NAT, DPI e LBS. No in\u00edcio de 2025, a Miatel se tornou a primeira operadora a lan\u00e7ar comercialmente o WiFi Calling baseado no EPDG da VAS Experts.<\/p>\n","protected":false},"author":24,"featured_media":11458,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[98,102],"tags":[],"class_list":["post-11455","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-epdg","category-mobile-networks"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>(English) VASExperts<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<script type=\"application\/ld+json\" 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