2303-A – Service of a Trial Subpoena.

§  2303-a.  Service of a trial subpoena. Where the attendance at trial
  of a party or person within the party's control can be  compelled  by  a
  trial  subpoena,  that  subpoena may be served by delivery in accordance
  with subdivision (b) of rule 2103 to the party's attorney of record.