Coalesce in a SQL View?

I have a table as shown below:

I need to write a sql view that will show 1 row for the ReqNbr and then a column for the related service calls.  For example the result set should look something like this:

ReqNbr, Call_Numbers

10010, 0000013147;0000013097;0000013149;

10592, 0000012994;0000012999;

and so on.  I need a view that can do this as a function or stored procedure can't be used in the reporting tool that I'm dealing with.  In addition I would like the Service Call to be sorted ASC in the column when returned.

Any ideas?