| Type | Compact IP Hotel Phone with Wi-Fi |
| SIP Accounts | 2 SIP accounts / 2 lines |
| Display | No LCD screen (button-based hotel phone design) |
| Connectivity | Dual-band Wi-Fi (2.4 GHz & 5 GHz, 802.11 a/b/g/n/ac) | 1 × 10/100 Mbps Ethernet port |
| Power | PoE support (for GHP620 series) | Power adapter support (GHP620W uses adapter; Wi-Fi model) |
| Audio | HD voice, full-duplex speaker |
| Codecs | OPUS, G.711, G.722, G.729A/B, G.726, iLBC |
| Features | 3-way audio conferencing | 10 speed dial keys | 6 programmable keys | Hearing Aid Compatibility (HAC) |
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