A proliferation of exact closed-form solutions of the telegrapher\´s equation

for the voltage

in an

or lossless transmission line, with distributed series impedance

and shunt admittance

, respectively, have emerged in recent years. Generalizations of known solutions have been constructed, sometimes using ad hoc methods. A systematic method is described for deriving exact solutions in terms of standard transcendental functions, which yields far more general profiles for

, or

than previously given. Examples of the procedure are given based upon Bessel\´s, Whittaker\´s, and the hypergeometric equation, and previously derived profiles emerge as special cases of the analysis.