ZYCOO T100-A4, FXO IPPBX, 4FXO, 100 Extensions, 50 Calls

Four analogue PSTN lines connect as trunks through the ZYCOO T100-A4 FXO IPPBX's built-in ports, twice its T100-A202 sibling's count, within the same 100-extension, 50-concurrent-call T100 platform. Remote access comes from the bundled 1-year Always Online Plan, ZYCOO's proxy and push-notification service included with every T100. It suits a small office keeping several existing landlines as trunks rather than moving entirely to SIP. Small-business buyers in Dubai can request a quotation.