Grandstream Networks BudgeTone-100 User Manual

Page 14

BudgeTone-100 User Manual Grandstream Sdn Bhd

4.3.3 Answer an Incoming Call

There are two ways to answer an incoming call:

1. Pick up the handset to answer the call normally
2. Press the SPEAKERPHONE button to answer in speakerphone mode

4.3.4 Handset Mode and Speakerphone Mode

Handset mode and Speakerphone mode cannot be enabled at the same time.
Pressing the hook-switch or Speakerphone button would toggle the phone
between these two modes.

4.3.5 Call Hold

While in conversation, pressing the “Hold” button will put the remote end on
hold. This is achieved by sending a Re-INVITE with “a=sendonly” attribute and
a zero IP address for media in the SDP message. Pressing the “Hold” button
again will release the previously Hold state and the bi-directional media will
resume again. This is triggered by sending another Re-INVITE with
“a=sendrecv” attribute and a non-zero IP address for media in the SDP message.

4.3.6 Flash

This button is basically equivalent to putting an active call on Hold and then
switching to the other voice channel. If the other channel has an active
conversation going on, this is essentially a switching of the “talking” channel and
the other channel will be activated. If the other channel is idle with no active
conversation going on, then the user will hear a dial tone.

4.3.7 Call Transfer

The user can transfer an active call to a third phone by using the “Transfer”
button. The sequence is like this: