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IP sími Sími með snúru

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IP (Internet Protocol) sími og snúrusími eru tvær mismunandi gerðir símakerfa.

IP sími, einnig þekktur sem VoIP (Voice over Internet Protocol) sími, er stafrænn sími sem notar internetið til að senda raddgögn. Það breytir hliðrænu raddmerkinu í stafræn gögn og sendir það yfir netið til móttakarans. IP símar þurfa venjulega Ethernet tengingu og aflgjafa til að virka og þeir geta verið notaðir með ýmsum gerðum hugbúnaðar og forrita.

Aftur á móti er snúrusími hefðbundinn hliðrænn sími sem er tengdur almenningssímakerfinu (PSTN) með líkamlegri snúru. Símar með snúru nota rafmerki til að senda raddgögn yfir koparvíra. Þeir þurfa ekki aflgjafa þar sem þeir fá afl sitt frá símalínunni. Símar með snúru eru almennt áreiðanlegri og veita betri símtalagæði en IP-símar, en þeir skortir háþróaða eiginleika og sveigjanleika IP-síma.

Í stuttu máli eru IP símar stafrænir símar sem nota internetið til að senda raddgögn, en snúru símar eru hefðbundnir hliðrænir símar sem eru tengdir við PSTN með líkamlegri snúru. Hver tegund síma hefur sína kosti og galla og valið á milli fer eftir sérstökum þörfum og kröfum notandans.

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