This product is a Cisco ATA 187 Analog Telephone Adapter (model ATA187-I1-A).
Function: Converts traditional analog telephones and fax machines into Voice over IP (VoIP) devices.
Ports: Features two voice ports (RJ-11) for telephones and one Ethernet port (RJ-45) for network connectivity.
Features: Supports Session Initiation Protocol (SIP) and high-performance line echo cancellation.
Price: 617 SAR
And I'm selling it for 100 SAR