24 Port, 32 Port, 4 Port, 8 Port, 16 Port | — |
Connectors: 2-32 shielded female RJ-11 jacks, Number of ports: 2-32 FXO/FXS configurable, Use multiple gateway units for higher port counts | — |
Connector: 2 shielded female RJ-45 jack for LAN, Network Interface: 10/100 Base-T Ethernet LAN port | — |
RTP/RTCP for delivery of voice, SIP per RFC 3261 | — |
T.38 FoIP transcode fax from T.30 fax protocol (supporting V.17) modulation schemes, T.38 for transmission over a packet network | — |
DTMF detection, and fax tone detection, G.711 μ-Law and A-Law, G.723.1, G.729AB Silence suppression with comfort noise G.168 automatic echo cancellation Call Progress Analysis (CPA), Including Positive Voice Detection, Positive Answering Machine Detection (PAMD) | — |
From IP to PSTN or from PSTN to IP, IP fault tolerance, IP load balancing, User configuration list of VoIP endpoints | — |
3 Years From Manufacturer | — |
FXO, FXS | — |
Synway | Zycoo |
— | Announcements, Built in Conference Bridge/Service, Calling Queues (ACD/IVR), Dictation, Directory, Fax to Email, Feature Rich User Control Panel – Visual Voicemail, Flexible Time Based Call Routing, Follow Me/ Find Me Calling, Hunt/Ring Groups, Music On Hold, Personal IVRs, Secure Communications (SRTP/TLS), Support for Video Calling, Voice Mail Blasting, Wake Up Calls |
— | Call Forwarding, Call History – Call Detail Records and Call Event Logging, Call Recording, Call Screening, Call Transfer, Call Waiting, Caller Blacklisting, Caller ID, DISA, Do Not Disturb, Paging/Intercom, Speed Dials, Three Way Calling, Voice Mail – Voicemail to Email |
— | Open Standards Support for Multiple Signaling Protocols: SIP, IAX2, PRI/T1/E1, POTS/Analog, ISDN, Soft Phone Support, Specialty Device Support – Door Phones, Overhead Paging, Strobe Alerts, Paging Gateways, Voice Gateways, Failover Devices, WebRTC – Browser Based Calling (thru UCP) |
— | Bulk Import Utilities (Trunks, Extensions, Users, Phone Numbers), Integrated Intrusion Detection, System Dashboards |
— | User Control Panel (UCP) |
— | 2 Port GSM Module, 2FXS-FXO Module, 4 FXO Module, 4 FXS Module, 4 Port GSM Module, E1/T1 Module, Without Module |
— | 2 Port GSM Module, 2FXS-FXO Module, 4 FXO Module, 4 FXS Module, 4 Port GSM Module, E1/T1 Module, Without Module |