Điện thoại ip SANGOMA S300 | Điện thoại bàn voip S300 giá rẻ

Thông số kỹ thuật: Điện thoại Sangoma s300
Phone Features
+ 2 VoIP accounts
+ Call hold, mute, DND
+ One-touch speed dial, hotline
+ Call forward, call waiting, call transfer
+ Redial, call return, auto answer
+ 3-way conferencing
+ Direct IP call
+ Ring tone selection/provisioning
+ Set date time automatically or manually
+ Dial plan per account
+ RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
+ Action URL/URI
Voice Codecs Features
+ HD voice: HD handset, HD speaker
+ Codecs: iLBC, G.722, G.711(A/μ), GSM_FR, G.723, G.729AB, G.726-32
+ DTMF: In-band, RFC 2833, SIP INFO
+ Full-duplex hands-free speakerphone with AEC
VAD, AGC, CNG, AEC, PLC, AJB
IP-PBX Features
+ Busy Lamp Field (BLF)
+ Anonymous call, anonymous call rejection
+ Message Waiting Indicator (MWI)
Voice mail
+ Intercom, paging
+ Call park, call pickup
+ Music on hold
Display and Indicator
+ 132x48 pixel graphical LCD with backlight
+ LED for call and message waiting indication
+ illuminated LEDs for line status information
+ Intuitive user interface with icons and soft keys
+ National language selection
+ Caller ID with name, number
Feature keys
+ 2 line keys with LED
+ 6 features keys: headset, speaker, hold, mute, transfer, conference
+ 4 context-sensitive “soft” keys
+ 6 navigation keys
+ Volume control keys
Interface
+ Dual-port 10/100M Ethernet
+ Power over Ethernet (IEEE 802.3af), class 3
+ 1xRJ9 (4P4C) handset port
+ 1xRJ9 (4P4C) headset port
Physical Features
+ Stand with 2 adjustable angles
+ Wall mountable
+ External universal AC adapter : AC 100~240V input and DC 5V/1.2A output
+ Power consumption (PSU): 1.6~2.6W
+ Power consumption (PoE): 2.0~3.2W
+ Boxed dimension: 205x193x97mm
+ Operating humidity: 10~95%
+ Operating temperature: -10~50°C
Management
+ Configuration: browser/LCD-Menu/auto-provision
+ Auto provision via HTTP/HTTPS FTP/TFTP
+ Auto-provision with PnP
+ Reset to factory, restart, reboot
+ Local tracing log export, system log
+ Phone lock for personal privacy protection
Network and Security
+ SIP v1 (RFC2543), v2 (RFC3261)
+ SIP server/proxy redundancy
+ NAT Traversal: STUN mode
+ DHCP/static/PPPoE
+ HTTP/HTTPS web server
+ Time and date synchronization by SNTP
+ DNS-NAPTR/DNS-SRV(RFC 3263)
+ QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
+ IEEE802.1X
+ TLS(Transport Layer Security)
+ SRTP
+ Open VPN
+ HTTPS certificate manager
+ AES encryption for configuration file
+ Digest authentication using MD5/MD5-sess