Yealink SIP-T48G Administrator's Manual page 18

Microsoft Lync Edition Administrator's Guide for SIP-T2_Series and T4_Series IP Phones
In addition to physical features introduced above, IP phones also support the following
key features when running the latest firmware:
Phone Features

Call Options: call waiting, call hold, call mute, call forward, call transfer.
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Basic Features: DND, live dialpad, dial plan, caller identity, auto answer.
-
Codecs and Voice Features

Wideband codec: G.722
-
- Narrowband codec: G.711, G.726, G.729, iLBC, G723
- VAD, CNG, AEC, PLC, AJB, AGC
Full-duplex speakerphone with AEC
-
Network Features

SIP v1 (RFC2543), v2 (RFC3261)
-
Proxy mode and peer-to-peer SIP link mode
-
- IP assignment: Static/DHCP/PPPoE
- VLAN assignment: LLDP/Static/DHCP/CDP
Bridge and Router mode for PC port (Router mode is only applicable to
-
SIP-T22(P) IP phones)
- HTTP/HTTPS server
DNS client
-
DHCP server
-
IPv6 support
-
Management

FTP/TFTP/HTTP/PnP auto-provision
-
- Configuration: browser/phone/auto-provision
Dial number via SIP server
-
Dial URL via SIP server
-
TR-069
-
Security

HTTPS (server/client)
-
- Transport Layer Security (TLS)
- VLAN (802.1q), QoS
Digest authentication using MD5/MD5-sess
-
- Secure configuration file via AES encryption
Phone lock for personal privacy protection
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