This helps mobile operators lure voice traffic away from fixed-line operators, a process known as “fixed-mobile substitution”.

这种被称为“固定-移动代替者”的方案着实帮助了移动运营商从固定电话运营商那里抢来了不少语音电话业务。

youdao

This helps mobile operators lure voice traffic away from fixed-line operators, a process known as “fixed-mobile substitution”.

这种被称为“固定-移动代替者”的方案着实帮助了移动运营商从固定电话运营商那里抢来了不少语音电话业务。

youdao