Basic Ip Phones With Vpn Security

We are engaged in offering excellent quality Basic IP Phones With VPN Security to our valuable clients.

I/O Interface
2 RJ-45 port (10/100 Ethernet Ports)
1 RJ9 for headset
1 DND switch
Full duplex hands-free speaker phone
Headset jack and Wall-mount

Voice Codec
G.711 (A-Law, I -Law) with PAMS above 4.3
G.729A/AB with PAMS above 4.0
G.723: 5.3kbps and 6.3kbps
G.722
Adaptive Jitter Buffer Management
Voice Activity Detection
Comfort Noise Generation
Echo Cancellation

Application:-
MAC address cloning
SIP proxy redundancy: dynamic via DNS SRV, A records
Direct IP to IP calling
NAT Traversal: Traversal by STUN
Built-in NAT Router
QoS with Layer 2 and Layer 3
DHCP Server and Client
IP conflict detection
Support PoE comply with IEEE802.3af(optional)

Management:-
Firmware Upgradeable
Web Management Interface
Password Management
Local and Remote Syslog (RFC3164)
Auto Provisioning: TFTP, HTTP and HTTPS
SNTP Time Synchronization
Multi User Level
SNMPv2
TR069

Call Features:-
4 lines, Call Waiting, Auto Answer, Music on hold, Caller ID and call waiting ID
3-way Conference, Call Hold, Call Forwarding, Call Mute
Call Transfer: blind transfer and attended transfer
Delayed Hotline, SMS Functions, Redial, Speed Dia, BLF
Pick up, Call park, Dial Plan, Phonebook, Black List, MWI, DND
Call log: redial list, answered calls and missed calls
Full-duplex Speakerphone
Volume Adjustment: Handset/Headset, Speaker and Ringer
DTMF Relay: In-band, Out-band(RFC2833) and SIP INFO