** Rugged phone maker's shares SONM.O fall about 21% to
$0.49
** SONM on Tuesday after market said doubt exists regarding
its ability to continue as a going concern as liquidity was hit
by a decline in legacy product sales as well as legal expenses
urn:newsml:reuters.com:*:nPn3l8qHXa
** Reports $2.4 mln in legal expenses and $13.9 mln in cash
and equivalents in Q1
** Q1 rev of $12.2 mln misses Refinitiv IBES estimates of
$13 mln
** Co plans to explore raising additional capital from the
sale of equity securities or by incurring debt to continue
operations
** SONM had fallen 14.4% YTD as of its last close
(Reporting by Amruta Khandekar)
((Amruta.Khandekar@thomsonreuters.com;))