| Type | Essential 2-line IP Phone (Carrier-Grade GRP series) |
| SIP Accounts | SIP Accounts |
| Lines | 2 lines |
| Display | 2.4" LCD (132 × 48 pixels) |
| Audio | HD audio with noise shield technology |
| Conferencing | 5-way audio conferencing |
| Network Interface | 2 × 10/100 Mbps Ethernet ports | Integrated PoE (GRP2601P model) | Wi-Fi support (GRP2601W model, 2.4 GHz) |
| Headset Support | EHS support (Plantronics, Jabra, Sennheiser) |
| Provisioning | Zero-touch provisioning via GDMS (Grandstream Device Management System) |
| Security | Secure boot, encrypted storage, dual firmware images, TLS/SRTP |
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