more than 70% of our phone bill is for Telstra lines rental.
some one suggest me to use the voip system, but I have no idea on such technical staff,
and our office need to have 4 incoming phone line..
more than 70% of our phone bill is for Telstra lines rental.
some one suggest me to use the voip system, but I have no idea on such technical staff,
and our office need to have 4 incoming phone line..
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