Yealink SIP T21- Entry Level IP Phone 2-line IP Phone with High-quality materials, 5-line display, HD voice, IPV6, switch, XML phonebook
Mô tả sơ bộ- HD Voice: HD Codec (G.722), HD speaker, HD handset
- 132 x 64-pixel graphical LCD
- Two-port 10/100 Ethernet Switch
- Up to 2 VoIP accounts
- Headset support
- Wall mountable
- IPv6 Support, OpenVPN
- XML/LDAP remote phonebook
- SRTP / HTTPS / TLS, 802.1x
- National Language support
- Simple, flexible and secure provisioning options