PSTN networks
[ˈpiː.ɛs.ˈtiː.ˈɛn ˈnɛt.wɜːrks]
nounpl: PSTN networks
redes PSTN
1. Public Switched Telephone Network - the infrastructure system used for circuit-switched voice transmission over telephone lines, utilizing a network of interconnected switches and transmission lines
PSTN networks have been the backbone of traditional telephone communication for decades.
As redes PSTN foram a base da comunicação telefônica tradicional por décadas.
2. The traditional landline telephone system that connects telephone exchanges to provide voice communication services to subscribers
Many businesses still rely on PSTN networks for their main telephone lines.
Muitos negócios ainda dependem das redes PSTN para suas linhas telefônicas principais.
PSTN networks represent the traditional telecommunications infrastructure that dominated in Brazil and worldwide until the rise of VoIP and mobile technologies in the 2000s. In Brazil, Telebrás and later privatized companies like Telefônica and Oi managed PSTN infrastructure. The term is still widely used in technical and regulatory contexts in both Brazil and Portugal, though these networks are gradually being phased out in favor of digital and mobile alternatives.
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