6-2 CHAPTER 6: SUPPLEMENTARY VOICE FEATUREStelephone company should provide the appropriatecommands.The 3C882 ISDN modem will announce a forwarded call byproducing a short ring on the telephone that is routed to theforwarded number.ISDN Call WaitingISDN Call Waiting allows you to place a voice call on holdwhile you answer an incoming voice call.By default, ISDN Call Waiting is disabled on analog port 2(S76=1). To avoid potential call interruptions when sending orreceiving a fax transmission, you should therefore install yourfax machine on analog port 2.Table 6-1 How to Use Call WaitingHow Do I Do ThisPlace the first call on hold andanswer the second?When you hear the call waiting indicator, press andimmediately release the switch hook button.Place the second call on holdand then switch back to the firstcall?Press and release the flash hook. The second call isthen put on hold.End the first call and thenanswer the second call?Hang up the telephone, wait for the telephone to ring,and then answer the call.What if the call on hold isdropped?If the call on hold hangs up at the far end, you willreceive no notice. If you press and release the switchhook button, you will get a dial tone, indicating thatthe call on hold was dropped. Press and release theswitch hook button again to return to the previouslyactive caller.What if the active caller hangsup?If the active caller hangs up, the call on hold remainson hold until you retrieve it by pressing andimmediately releasing the switch hook button. If youhang up while a call is on hold, the telephone will ringto indicate that there is a call on hold. If you do notretrieve the call within 6 seconds, the call is dropped.
