Yeastar TB400 is a compact and reliable standalone VoIP BRI gateway (BRI-VoIP/VoIP-BRI) offering 4 BRI ports for companies using ISDN BRI lines an easy, cost-effective and flexible integration into any VoIP system or enabling any IP PBX to be connected to the public ISDN network.

• Programmable TE/NT modes for easy integration
• ISDN PBX has access to VoIP network
• Preserve investment on PBX infrastructure
• Additional ISDN BRI trunking for IP-PBX
• Cost savings on phone calls via VoIP
• ISDN compliant and proven interoperability