basic smartphone question

My phone ring once, then goes to voicemail. that cause me lose a lot of phone calls, how to make it ring six then divert to mailbox? Thanks a lot

所有跟帖： 

• Brand as motorola -wys1234- ♀ (0 bytes) () 08/19/2014 postreply 10:32:11

• Why not just call customer service...they will change it for you -mfl- ♂ (0 bytes) () 08/19/2014 postreply 11:47:37

• 看是哪家的。 Verizon 必須打客服，其他的放狗查。 -dknt- ♂ (0 bytes) () 08/19/2014 postreply 15:37:09

• 有一種東西叫做"說明書" -5W40- ♂ (0 bytes) () 08/19/2014 postreply 19:25:47

• 謝謝， 解決了， 看help -wys1234- ♀ (0 bytes) () 08/19/2014 postreply 20:44:05