Call Hold

While in conversation, pressing the "FLASH" button on the attached phone will put the remote end on hold. Pressing the "FLASH" button again will release the previously Hold party and the bi-directional media will resume.

PSTN Pass Through/Life line

HandyTone-486 User Manual Grandstream Networks, Inc.

HandyTone-486 Rev. 2.0 supports PSTN pass through. User can send and receive PSTN calls with the attached analog phone.

To receive PSTN calls, simply make phone off hook when the analog phone rings.

To make a PSTN call, press the PSTN access code (*00 by default, or any number configured in web configuration page) to switch to PSTN line and get a dial tone, then dial the PSTN number.

When HandyTone-486 is out of power, it will function as a jack. User can use the same analog phone for PSTN calls.