ZYCOO T100-S, SIP Trunk IPPBX, 100 Extensions, 50 Calls

No FXO or FXS ports come built into the ZYCOO T100-S SIP trunk IPPBX, unlike its T100-A220/A4/A202 siblings: it relies entirely on SIP trunks from a provider, for up to 100 extensions and 50 concurrent calls. A 1-year Always Online Plan bundles ZYCOO's proxy and push-notification service, keeping the system reachable from outside the office network. It suits a site with no analogue lines left to keep. System integrators in Dubai and the UAE can request a quotation.