Telephony, January 4, 1919, pages 19:

Church Service by Telephone During "Flu" Ban.
    Although public church services were forbidden because of influenza, this did not prevent members of the Jackson Street Christian church in Muncie, Ind., from listening to the usual Sunday sermon on the morning of December 22 by Rev. F. E. Smith, their pastor.
    At 10:30 o'clock, through the co-operation of the local telephone company management, the telephones of all subscribers who wished, were connected with the telephone in the church, to which a special sounder was attached. The church organist also played a few numbers.