  We give an upper estimate for the number of gamma ray bursts from ordinary
(non-superconducting) cosmic strings expected to be observed at terrestrial
detectors. Assuming that cusp annihilation is the mechanism responsible for the
bursts we consider strings arising at a GUT phase transition and compare our
estimate with the recent BATSE results. Further we give a lower limit for the
effective area of future detectors designed to detect the cosmic string induced
flux of gamma ray bursts.
