Cortelco 2747 user manual

oUser can easily observe if the VOIP 2747 is working normally and monitor the system status (network status, registering status) from the LCD panel display.

oA “PKT Trace” function is supported to display the packets received on the LCD panel and helps network administrator find the problem on line.

•Call with or without gatekeeper / proxy(direct IP dialing) :

oFollows standard SIP / H.323 protocol and is compatible with most existing SIP proxy / H.323 gatekeepers.

•Provides easy configuration methods:

oSetting by keypads on the phone.

oSetting by web browser.

•Supports RFC-3261, H.323, TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP, DNS, DHCP, NTP/SNTP, FTP, PPP, PPPoE protocols.

•Interoperable with most of the existing SIP/H.323 VoIP devices (IP-phone, gateway, gatekeeper, proxy, soft-switch, IP-PBX), including Microsoft NetMeeting, Cisco gateways / gatekeepers:

oPlease refer to the section 6.2/6.3 Interoperability List for a complete listing.

•The WAN Port works with either straight through or crossover Ethernet cable.

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