MicroNet SP5001C Uživatelský manuál stáhnout pdf (Strana 15)

15

IP PBX Basics

…

Internet

ISP/ITSP

PSTN/GSM

SIP Trunk

PSTN/GSM

PSTN Trunk

LAN Switch

PSTN Trunk (FXO): Company needs a

representative PSTN number for customers

to call. If the direct calling with PSTN

number to VoIP network is not supported by

ITSP, FXO ports connect with PSTN and

receive daily phone calls from PSTN/GSM.

The IP-based communication platform is

operated over the LAN wiring infrastructure

that is constructed via LAN switch.

SIP Trunk: IP PBX supports SIP trunk to

register with SIP Proxy of ISP/ITSP that

provides cost-saving call routes.

PC with

Soft-phone

IP Phone

FXS

Gateway

IP PBX

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