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Grandstream GS-GXP2140 Enterprise IP Telephone VoIP Phone and Device
Dual switched auto-sensing 101001000 Mbps Gigabit Ethernet ports with integrated PoE
4 line keys with up to 4 SIP accounts 5 programmable context sensitive softkeys 5 navigationmenu keys
11 dedicated function keys for MESSAGE with LED indicator PHONEBOOK TRANSFER CONFERENCE HOLD HEADSET MUTE SENDREDIAL SPEAKERPHONE VOL
RJ9 headset jack allowing EHS with Plantronics headsets USB extension module port
Support for G729AB G711a-law G726 G722 wide-band and iLBC in-band and out-of-band DTMF in audio RFC2833 SIP INFO
