Grandstream 4-port FXO Gateway, GXW4104

Key Features

• 4 or 8 ports
• 2 10/100 Mbps network ports
• Comprehensive codec support, caller ID, flexible dial plans and security protection
• Advanced security protection with SRTP
• Designed and tested for full interoperability with leading IP-PBXs, soft-switches and SIP-based environments
• PSTN Failover on power failure 
• 1 year limited warranty