• Protocols/Standards: 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
• Network Interfaces: Dual switched auto-negotiation 10/100 Mbps Ethernet ports, integrated PoE (GRP2601P only)
• Graphic Display: 132 x 48 (2.41’’) LCD display
• Feature Keys: 4 XML programmable context sensitive soft keys, 5 (navigation, menu) keys. 8 dedicated function keys for: MESSAGE(with LED indicator), TRANSFER,HEADSET, MUTE, SEND/REDIAL, SPEAKERPHONE, VOL+, VOL-
• Voice Codecs and Capabilities: Support for G.729A/B, G.711μ/a-law, G.726, G.722(wide-band), G.723,iLBC, OPUS, in- band and out-of-band DTMF(in audio, RFC2833, SIP INFO), VAD, AEC, CNG, PLC, AGC, AJB
  Telephony Features: 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 records), 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
• Auxiliary Ports: RJ9 headset jack (allowing EHS with Plantronics & Jabra &Sennheiser headsets)
• Base Stand: Yes, 1 angle position available (45°), Wall Mountable (*wall mount sold separately)
• QoS: Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS
• Security: User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES encrypted configuration file, SRTP, TLS, 802.1x media access control, secure boot
  Multi-language: English, Chinese, Korean, Japanese, German, Italian, French, Spanish, Portuguese, Russian, Croatian and more
• Upgrade/Provisioning: Firmware upgrade via FTP/TFTP / HTTP / HTTPS, mass provisioning using GDMS/TR-069 or AES encrypted XML configuration file
• Power & Green Energy Efficiency: Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA;PoE: IEEE802.3af Class 1, 3.84W; IEEE802.3az (EEE) (GRP2601P Only)
• Temperature and Humidity: Operation: 0°C to 40°C / Storage: -10°C to 60°C / Humidity: 10% to 90% Non-condensing
• Package Content: GRP2601/2601P phone, handset with cord, base stand, universal power supply (GRP2601 only), network cable, Quick Installation Guide
• Physical: Dimension: 208mm (L) x 180mm (W) x 63.4mm (H) (with handset) / Unit weight:650g; Package weight:810g (860g for GRP2601) 
• Compliance: FCC: Part 15 Class B; FCC Part 68 HAC; / CE: EN 55032; EN 55035; EN 61000-3-2; EN 61000-3-3; EN 62368-1; RCM: AS/NZS CISPR32; AS/NZS 62368.1; AS/CA S004; IC: ICES-003; CS-03; 1.2022.03

â—† 2 SIP account, 2 lines.

â—† GDMS online device management and provisioning.

â—† 5-way audio conferencing for easy conference calls.

â—† Equipped with noise shield technology to minimize background noise.

â—† Electronic Hook Switch (EHS) support for Plantronics, Jabra, and Sennheiser headsets.

â—† The GRP2601P includes built-in PoE to power the device and give it a network connection.

â—† Enterprise-level protection including secure boot, dual firmware images and encrypted data storage.