BLF/speed-dial keys, making it ideal for busy workers. 

This Enterprise IP Phone features up to 8 lines/line keys and 4 SIP accounts using a 2.8 inch (320 x 240) color display LCD and full HD audio.

The GXP2135 includes up to 32 digital, on-screen speed dial/BLF keys to help users be more productive and efficient. 

Grandstream GXP2135 8 Lines and 4 SIP IP Phone

This Enterprise IP Phone supports the fastest possible connection speeds with dual Gigabit network ports, features integrated PoE and includes built-in Bluetooth for syncing with mobile devices and Bluetooth headsets.

The GXP2135 is the perfect choice for business users looking for a powerful and reliable IP phone with advanced functionality

Graphic Display 2.8 inch (320x240) TFT color LCD

Protocols/Standards

SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TELNET, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR-069, 802.1x, TLS, SRTP, IPV6, CDP/SNMP/RTCP-XR 

Telephony Features Hold, transfer, forward, 4-way conference, call park, call pickup, shared-callappearance (SCA)/bridged-line-appearance(BLA), downloadable phonebook (XML, LDAP, up to 2000 items), call waiting, call log (up to 500 records), XML customization of screen, off-hook auto dial, auto answer, click-to-dial, flexible dial plan, hot desking, personalized music ringtones and music on hold, server redundancy and fail-over