● No. 7 signaling supports the 14/24 bit code standard, supports traffic sharing between links and link groups, and supports multiple destination signaling point codes.

● Supports incoming calls on the IP line. After routing and number change, the specified PCM relay is connected for voice communication.

● Supports number change, caller ID, and PSTN/VoIP routing path.

● Supports audio codec formats G.711A, G.711U, and G.729A/B.

● Support DTMF mode RFC2833, SIP INFO, INBAND.

● Supports signaling 7 (TUP), ISUP, ISDN (user side, network side), SIP V2.0.

● Supports network protocols such as TCP/UDP, HTTP, ARP/RARP, DNS, NTP, TFTP, TELNET, and STUN.

● Support static IP address modification, DNS domain name resolution.

● Support administrator authentication to ensure the security of resources and data.

● WEB-based Ping testing can be performed.

● You can modify the configuration, gateway services, kernel, and firmware upgrades through the web interface.