Call Waiting Service - Planet VGW 10 Series User Manual

5.1.2.2 Blind transfer business
After hearing ringback tone
With VGW's blind transfer business, the call processes are as follows:
1) B dials to A, and then A is off hook, so a session is established between A and B.
2) A's hook flashes, and now A can hear a dialing tone. B is on call waiting. A continues to
dial to C, and when A hears a ringback tone, then it is on hook.
3) If C is off hook, a session is established between B and C. Otherwise, B would first hear a
ringback tone and then a busy tone for a period of time. After that vanishes, the session
ends.

5.1.3 Call waiting service

VGW in the call waiting service is not enabled by default. To enable this service, go to the
4-/8-Port SIP Internet Telephony Gateway
Call C
on hook
Receptionist A
Figure 5-1-4 Blind transfer business
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VGW-x10 Series
Staff C
IP Network
Consultant B