[lemma=□]
[lemma=ameritech]
Ameritech Mobile , which is located in Shaumburg , Illinois , is involved in setting up operations in Europe , one of which may be in the Assistant Chief Economist 's former homeland , Greece . The SBC / Ameritech incumbent LECs have and will continue to provide the SBC Advanced Services Affiliates and unaffiliated telecommunications carriers field by field usage rules , documentation , technical requirements and parameters that can be used by those carriers to interface with the SBC / Ameritech incumbent LEC ordering interfaces . Ameritech contends that this language suggests that the word " operation " was merely deleted because it was superfluous . Working with Ameritech and its AAVS network , CEC has demonstrated a capability to make a difference in the classroom and in the school . Ameritech and Northeast argue that given the many complex issues raised by the new guidelines and the petitions for reconsideration it may be several months before the revised Bulletin can be issued and , consequently , industry will not have adequate time to comply with the new rules .