Connected to IMS Networks via ONU
Dual-redundant Ethernet ports
Dual AC/DC power supplies (optional)
Multi-site deployment supports up to 300 sites
Call recordings on the internal storage or external server
Add-on call recording management system
Add-on middle-ware for hospitality applications
XML/HTTP-based RESTful API interworking with and supporting
third-party applications
Multi-level auto-attendant
Support TR-069, SNMP
Interoperability with popular SIP servers, such as Cisco Unified
CallManager (CUCM), Broadsoft, Microsoft Skype for Business
(Lync), Huawei IMS, and Asterisk/Elastix
Class I lightning protection ProtocolsCall controlSIP/UDP and SIP/TCP (RFC3261), IMS (3GPP)NetworkTelnet, SSH, HTTP, HTTPS, DHCP/PPPoE client,
DNS (A/SRV record), STUNMedia ProcessingCaller IDBellcore Type 1&2, ETSI, BT, and DTMF-based CIDCodeG.711 (a/μ), G.729aDTMFIn-band audio, RFC2833, SIP-INFOHook-flashLocal processing, RFC2833, SIP-INFOFax over IPT.38, G.711 pass-throughT.38 compliant Group 3 Fax RelayMaximum fax rate of 33,600 bps (pass-through)Disconnect modesPolarity reversal, Busy tone detection, Loop currentVoice-quality
enhancementEcho cancellation (G.168-2004), Jitter buffer,
Silence suppression (VAD, CNG), PLC