In 1886 it built an ornate red brick and terracotta building 19, Newhall Street, now grade I listed, for its Birmingham Central exchange, opened in 1887.
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Watkin first worked in the Equipment Department of the National Telephone Company and helped develop the first fully automatic telephone exchange in Staffordshire Potteries that opened in 1904.
However, when the national telephone company TPSA offered internet dial up service, in 1996 Maloka closed down.