how to get call-in phone call alert

would y please tell me how to get call-in phone call alert while
i go to internet by phone line?
thanks

所有跟帖： 

• Call waiting service -19844- ♀ (0 bytes) () 11/03/2005 postreply 10:56:15

• 要問你的電話公司,可能是call waiting一類的功能 -不得不注冊- ♂ (0 bytes) () 11/03/2005 postreply 11:00:09

• 回複：how to get call-in phone call alert -hjh73- ♀ (115 bytes) () 11/03/2005 postreply 16:19:51

• 是有那種軟件,但首先要硬件支持,另外現在撥號上網的少 -不得不注冊- ♂ (146 bytes) () 11/04/2005 postreply 05:43:58