Compare

Adjustable Headband, Dual earpiece headband with bigger size, Durable, light weight, rigid, Easily Repairable ( with full parts available ), Flexible Plastic Mic Boom for clear transmission, For USB Jack, Headsets for Dialers and Soft Phones, Soft leatherette ear cushions for all day comfort

—

—

Easily Repairable ( with full parts available ), Impedance : 32-150 ohms, Leatherette ear cushions available., Optional Quick Disconnect Jack, Plastic and Rubber MIC Boom Assembly for clear transmission, SPL (at 1 kHz, 1 Vrms) : 100 dB, Stay-put click-stop headband for a perfect fit.

—

—

Frequency Response : 80 ~ 6500Hz, Impedance : 2.5 K Ohms, Pick up Pattern : Noise Cancelling, Type : Bidirectional

—

—

—

Fanvil X6

—

—

Fanvil

Dinstar

—

Three Way Calling, Voice Mail – Voicemail to Email, Caller ID, Call Transfer, Call Recording, Do Not Disturb, Call Forwarding, Call Waiting, Call History – CallDetail Records andCall EventLogging, Speed Dials, Caller Blacklisting, Paging/Intercom, Call Screening, DISA

—

—

SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDPMED, LDAP, TR-069, 802.1x, TLS, SRTP

—

—

User and administrator level access control, MD5 and MD5-sess based authentication, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access control

—

—

Flexible Time BasedCall Routing, Built in Conference
Bridge/Service, Fax to Email, Hunt/Ring Groups, Music On Hold, Voice Mail Blasting, Follow Me/Find Me Calling, Personal IVRs, Wake Up Calls, Support forVideo Calling, SecureCommunications
(SRTP/TLS), Feature Rich User
Control Panel- Visual Voicemail, Directory, Announcements, Dictation, Calling Queues(ACD/IVR)

—

—

Support for G.711µ/a, G.722 (wide-band), G.723 (pending), G.726-32, G.729 A/B, in-band and out-of-band DTMF (In audio, RFC2833, SIP INFO)

—

—

English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, simplified and traditional Chinese, Korean, Japanese and more

—

—

FCC: Part 15 (CFR 47) Class BCE : EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950; AS/NZS 60950.1

—

—

—

32 Port, 4 Port, 8 Port

—

—

SIP V2.0 RFC3261, SDP RFC2327, Session Timer RFC4028, RTP/RTCP RFC3551, SIP Registration, SIP Trunk ( Peer Mode), SIP Trunk Group, Ringback (Immediately, Alerting), Configurable SIP Release Code, DNS SRV/A Query, Outbound Proxy, DTMF mode: Signal/RFC2833, NAT Traversal Dynamic NAT, Static NAT, STUN, G.711A/U law, G.723.1, G.729A/B, Silence Suppression & Detection, Comfort Noise Generation(CNG), Voice Activity Detection(VAD), Echo Cancellation(G.168), Adaptive (Dynamic) Jitter Buffer, Call Progress Tone Generation, Programmable Gain Control