2N Analogue UMTS gateway 2N SmartGate UMTS - Manual, 1699 v1.1.0 - Manual (Page 61)

Voice function 4.1
61
Call hold
Check if your network supports the service before you use it.
This service relates to Call waiting described in 0. If there is call waiting on the
line, you have more possibilities what to do. Every action is made by FLASH and
DTMF code:
To terminate all held calls, or reject waiting call dial:
To terminating active call and accept the held or waiting call dial:
To place the active call on hold and accept the held or waiting call (switching
between two calls) or
To place the active call on hold to have possibility to dial other outgoing call dial:
To place all held calls to active calls and set up conference call dial:
To connect the two calls (active and held) and disconnect the 2N® SmartGate
UMTS from both calls dial: