This service is only available to INS-Net 64 or INS-Net 64 Lite
subscribers. This service lets you receicve calls even if you are already on the
line by putting one call on hold while you answer another.
Even if you are using two channels for Internet and telephone, application for
Call Waiting Notification (no charges apply) and compatible equipment are necessary
for INS Call Wating.
Call Waiting Notification may not function
properly when used in conjunction with Multi-Line Hunt.
No installation charge applies.
Monthly charge : ¥300(excl.tax)