Ordering phone service from the Telco you mean? Generally there is a bit of a lead time from the Telco, i've seen a 7-10 day committment for new service. Also, if it is a new building, of course you need to coordinate with the engineers and make sure the conduits are in and the entrance cables. Generally when we deal with the telcos on new construction, it is two different departments; one for the entrance cable, one for delivering the telephone service when your cable is in.
Good Luck!
It is only my opinion, based on my experience and education...I am always willing to learn, educate me!
Daron J. Wilson, RCDD
daron.wilson@lhmorris.com