Originally Posted by jamespvg
Is this true of all paper tickets or just the RTW ones?
I can only speak re RTW xONEx (OneWorld Explorer) tickets (and I assume xGLOBx (OneWorld Global Explorer). Both of these say valid on AA/CX/BA/QF/IB/AY/etc.... which mean a coupon is valid on any of OW airlines and does not need to be endorsed. Some(most) paper tickets will usually contain a restriction as to validity of airline/flight/date.