Technical Specifications; Table 2: Grp2601/Grp2601P Technical Specifications - Grandstream Networks GRP2601 Administration Manual

Technical Specifications

The following table resumes all the technical specifications including the protocols / standards supported,
voice codecs, telephony features, languages, and upgrade/provisioning settings for the GRP260X series.
Protocols/Standards
Network Interfaces
Graphic Display
Feature Keys
Voice Codec
Auxiliary Ports
Telephony Features



GRP2604

GRP2604P




Table 2: GRP2601/GRP2601P Technical Specifications

SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP,
DNS(A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE,
LLDP, LDAP, TR-069, SNMP, 802.1x, TLS, SRTP, IPV6
Dual switched auto-sensing 10/100/1000 Mbps Ethernet ports, integrated PoE
(GRP2601P only)
132 x 48 (2.21'') LCD display
4 XML programmable context sensitive soft keys, 5 (navigation, menu) keys.
8 dedicated function
TRANSFER,HEADSET, MUTE, SEND/REDIAL, SPEAKERPHONE, VOL+, VOL
Support for G7.29A/B, G.711µ/a-law, G.726, G.722(wide-band), G723, iLBC,
OPUS, in-band, and out-of-band DTMF(in audio, RFC2833, SIP INFO), VAD,
AEC, CNG, PLC, AGC
RJ9 headset jack (allowing EHS with Plantronics & Jabra & Sennheiser headsets)
Hold, transfer, forward, 5-way conference, call park, call pickup, downloadable
Phonebook (XML, LDAP, up to 2000 items), call waiting, call log(up to 800
GRP260x Administration Guide
Version 1.0.1.18
3 SIP account keys with dual-color LED.
4 XML programmable context sensitive soft keys
132 x 64 backlit graphical LCD display
10/100/1000 Mbps Ethernet ports.
Integrated PoE (GRP2604P only).
5-way conference.
Electronic Hook Switch (EHS) support for Plantronics &
Jabra & Sennheiser.
keys for: MESSAGE (with LED indicator),
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