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Archive for the ‘Telecommunication’ Category

Lebih dari dua dekade jaringan telekomunikasi telah mengadopsi Signaling System No. 7 (SS7) untuk pertukaran control information (signalling) antara network entities.

Jaringan SS7 merupakan urat syaraf yang mengontrol seluruh fungsi dan layanan jaringan, sehingga secara infrastruktur memerlukan kehandalan dalam hal manageability, scalability, dan reliable traffic delivery. Traditionalnya, jaringan SS7 terdiri dari link-link dedicated out of band yang mendukung call-establishment, billing, routing, dan fungsi pertukaran informasi dari PSTN yang berupa kanal 64-kbps bidirectional. Selain fungsi dasar call control, SS7 bertanggung jawab terhadap autentikasi pelanggan, pengiriman trafik message dan fungsi intelijen jaringan seperti number portability dan layanan enhanced calling. Setiap layanan baru yang ditawarkan ke pelanggan memerlukan persyaratan dan beban tambahan pada jaringan SS7.

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ENUM, One Number for All


ENUM adalah singkatan dari Electronic Numbering atau tElephone NUmber Mapping, yaitu pemetaan nomer telepon ke alamat IP internet dengan menggunakan Domain Name System (DNS). Dengan ENUM, user dapat dihubungi dimana saja di seluruh dunia dengan nomer yang sama dan melalui jalan terbaik dan termurah. Prinsipnya adalah sama dengan pemetaan nama domain ke alamat IP dengan bantuan teknologi Session Initiation Protocol (SIP).

ENUM mengubah nomor telepon ke dalam identifikasi universal yang dapat digunakan pada banyak device dan aplikasi yang berbeda seperti voice, fax, mobile, email, instant messaging, video, layanan berbasis lokasi dan internet.


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Walaupun banyak orang menyamakan dan mempertukarkan kedua term VoIP dan IP Telephony, keduanya memiliki perbedaan yang signifikan. Berikut adalah perbedaannya:


VoIP, sesuai namanya berfungsi untuk mentransmisikan voice melalui IP. VoIP mengantarkan trafik voice diantara PBX, atau untuk menyediakan layanan ekstensi jalur yang panjang dari handset remote ke suatu PBX. Sedangkan IP Telephony menawarkan layanan telepon berbasis IP, yang mengemulasi sistem seperti PBX, termasuk signalling, phone control, internet addressing.

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