[操作疑難] 都唔知關邊區事, Whatsapp on Iphone on Google Voice number

其實唔關電話事, 亦唔關ios / android app 事.
事源係我有個google voice account, 美國number, 用來register 左whatsapp 一直用開係舊iphone. 冇問題. 但係我換機, 想將佢搬去而家用緊既iphone / 或者 ipad我都得.

但係我成個app 連data 抄出來, import去新機, 佢detect到部機唔同左, 就叫我再verify過.
以前收到SMS, 仲可以叫佢打去google voice 個account 我聽 (或者留言)
(已forward去其他SIP service 都唔得, 而直打我個google number 我係收到電話的)
而家就兩個都fail.. 舊果部機已經trade左. 拎唔返個whatsapp account.
問whatsapp support 佢地話 VOIP 唔 support. 我個account 用左好耐, 仲係life time free 果隻. 有冇計諗?