.nf .PS scale=100 box invis ht 176 wid 520 with .sw at 0,0 "\fR\s10\&7. SIREQ\f1\s0" at 464,18 "\fR\s10\&tdktrkp\f1\s0" at 128,30 "\fR\s10\&tdktrkp\f1\s0" at 380,30 "\fR\s10\&tdkp\f1\s0" at 388,158 line -> from 160,160 to 360,160 "\fR\s10\&5. T_CHG/D_XINIT\f1\s0" at 260,166 line -> from 376,144 to 376,48 line -> from 128,48 to 128,144 "\fR\s10\&6. SIREQ\f1\s0" at 452,130 rjust "\fR\s10\&4. SIREQ\f1\s0" at 124,110 rjust "\fR\s10\&tdkp\f1\s0" at 140,158 "\fR\s10\&2. CALL\f1\s0" at 56,22 "\fR\s10\&3. ANSWER\f1\s0" at 56,-10 line -> from 8,8 to 96,8 line -> from 96,40 to 8,40 line <- from 96,56 to 8,56 "\fR\s10\&1. CALLMOD\f1\s0" at 60,62 line -> from 408,32 to 520,32 .PE .fi