... phone system features such as voice mail, call transfer, conference,call hold, hunting groups, and automated attendantCompatible with SIP ... .0 for 3G Dongle Router or Storage, supporting WCDMA and CDMA2000802.11 b/g/n with ... phone numberExtension Feature Blind transfer, Consultation transfer, call hold, park, recording,call transfer to PSTN, 3-way-conference, ... , WiFi on/off, WPS Wireless VoIP Gateway