Slidetitleminimum32pt(32ptmakes2rowsTextandbulletlevel1minimum24ptBulletslevel2-5minimum20pt!#$%&()*+,-./0123456789:;?ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz| İ “” İDonotaddobjectsortextinthefooterarea 2008-11-27 1软交换技术交流- VOIP 和 BICC协议Slidetitleminimum32pt(32ptmakes2rowsTextandbulletlevel1minimum24ptBulletslevel2-5minimum20pt!#$%&()*+,-./0123456789:;?ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz| İ “” İDonotaddobjectsortextinthefooterarea 2008-11-27 2VOIP概念 VOIP-VoiceOverI