IP Phone 7308LS Specifications
Next Generation Broadband Telephone
Features | Specifications

Protocol
• IETF SIP (RFC3261)
• SIP Registration Timers
• SIP Session Timers
• SIP Outbound Proxy
• Inband / Outband DTMF (RFC2833, SIP-INFO)

Phone and Call Features
• Full Duplex Speaker Phone
• Call Forward
• Call Transfer – blind & attended
• Do Not Disturb
• Caller ID blocking
• Call Mute
• Call Hold & Resume
• Call Waiting
• Caller ID Display
• Redial
• Music On Hold
• Message Waiting Indication
• Voicemail Button
• 6 Speed Dial Buttons
• Volume Adjustment

Codec
• G.711μ-law
• G.711a-law
• G.729a

Voice Quality
• VAD (Voice Activity Detection)
• CNG (Comfort Noise Generator)
• Echo Cancellation (LEC & AEC)
• Dynamic Jitter buffer

QoS
• RTP DSCP/ToS

IP Assignment
• Static IP
• DHCP
• Phone Menu Configurable

NAT Traversal
• STUN
• NAT Keep Alive

Security
• HTTP 1.1 digest authentication
• MD5 for SIP authentication (RFC2069/ RFC2617)

TCP/IP
• IP/TCP/UDP/DHCP/RTP/ICMP/HTTP/TFTP/DNS

Configuration
• Web-Based Configuration
• Firmware upgrade via TFTP

Network Interface
• RJ-45 x 2, 10/100BaseT
• Auto-MDIX
• Embedded Ethernet Switch

LCD Display
• 96 x 16 characters

Power
• Input AC 100-120V / 220-240V
• 50/60 Hz
• Output DC 5V

Environmental
• Operating temp: 0˚C~40˚C
• Storage temp: -20˚C~60˚C
• Operating humidity: 20%~80%

Physical Dimensions
• Size: 210(L) x 208(W) x 72(H)mm
• Weight: 640g

Certification Compliance
• FCC Part 15 Subpart B
• CE Class B
• VCCI Class B (optional)
• EN 60950-1 (Safety)