What can i say but i would have been lost without your support.
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Availability of this feature depends on your telephone company. The CCBS feature is in accordance with the ETS 300 359. (ETS: European Telecommunication Standard)
Sending a call waiting tone (Busy Station Signalling [BSS])
The party will know your call is waiting.
While hearing a busy tone BSS
Press âBSSâ or dial 2.
If "BSS" is not displayed or you hear a reorder tone, this feature has not been set at the other party's phone. This feature is only available if the called extension has set the "Call Waiting" feature. Depending on the other party's telephone, the "Off-Hook Call Announcement (OHCA)" and the "Whisper OHCA" functions can be applied. You can talk to the other party through the speaker and the microphone (OHCA) or you can send a call announcement through the handset (Whisper OHCA), while they are having another conversation using the handset.