Product Overview
7
caller identity, auto answer.
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Advanced Features: BLF, server redundancy, distinctive ring tones, remote
phone book, LDAP, 802.1x authentication.
Codecs and Voice Features
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Wideband codec: G.722
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Narrowband codec: G.711, G.723.1, G.726, G.729AB, GSM, iLBC .
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VAD, CNG, AEC, PLC, AJB, AGC
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Full-duplex speakerphone with AEC
Network Features
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SIP v1 (RFC2543), v2 (RFC3261)
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IPv4/IPv6 support
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NAT Traversal: STUN mode
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DTMF: INBAND, RFC2833, SIP INFO
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Proxy mode and peer-to-peer SIP link mode
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IP assignment: Static/DHCP/PPPoE (for SIP-T46G only)
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TFTP/DHCP client
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HTTP/HTTPS server
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DNS client
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NAT/DHCP server
Management
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FTP/TFTP/HTTP/PnP auto-provision
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Configuration: browser/phone/auto-provision
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Direct IP call without SIP proxy
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Dial number via SIP server
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Dial URL via SIP server
Security
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HTTPS (server/client)
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SRTP (RFC3711)
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Transport Layer Security (TLS)
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VLAN (802.1q), QoS
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Digest authentication using MD5/MD5-sess
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Secure configuration file via AES encryption
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Phone lock for personal privacy protection
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Admin/User configuration mode
Summary of Contents for SIP-T4X
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