Georgia Code Title 9. Civil Practice § 9-10-94

A person subject to the jurisdiction of the courts of the state under Code Section 9-10-91, or his executor or administrator, may be served with a summons outside the state in the same manner as service is made within the state by any person authorized to make service by the laws of the state, territory, possession, or country in which service is made or by any duly qualified attorney, solicitor, barrister, or the equivalent in such jurisdiction.