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2 SIP Accounts, 2 Lines

GDMS online device management and provisioning

3-way audio conferencing for easy conference calls

Integrated dual-band 2.4GHz & 5GHz 802.11 a/b/g/n/ac (GHP610W & GHP611W only)

Includes one 100Mbps network port with PoE (GHP610 & GHP611 only)

Speed dial label and swappable faceplate to allow for easy customization

Hearing Aid Compatibility (HAC)

Enterprise-level protection including secure boot

https://www.grandstream.com/products/ip-voice-telephony/hotel-phones/produc