Yeastar U510 is an embedded IP-PBX for High level companies supporting 500 SIP accounts, similary Asterisk appliance, The new compact, feature rich IP-PBX for every-day use The powerful alternative for enterprise.
Yeastar MyPBX U520 is an enterprise-grade solution designed for offices of up to 500 users, supporting up to 80 concurrent calls. It boasts to have 2 embedded PRI (E1/T1/J1) ports and 16 phone ports for PSTN, ISDN BRI and GSM/UMTS connectivity. Thus U520 couples VoIP with traditional telephone lines offering scalability, high availability, cost saving, and simplified support and maintenance.
Two E1/T1/J1 ports
Up to 16 Analog Ports (FXO/FXS)
Up to 8 GSM Ports
Up to 8 UMTS Ports
Up to 8 BRI Ports
One RS232 Port