In particular, although type ahead is permitted, the page is not immediately initiated upon receipt of {HEAD ~ the last character} of {TAIL ~ a valid command string} prior to the end of the announcement that is played to the caller upon his call reaching a bridging and signaling unit 
of
In particular , although type ahead is permitted , the page is not immediately initiated upon receipt of { HEAD ~ the last character } of { TAIL ~ a valid command string } prior to the end of the announcement that is played to the caller upon his call reaching a bridging and signaling unit
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH