Hi , I found a every strange thing !! After I call ------------------------------------------------------------------------- pjsua_acc_add(&acc_cfg, PJ_FALSE , &acc_id); --------------------------------------------------------------------------- I use ------------------------------------------------------------------------------------------------------ pj_str_t tmp; tmp = pj_str(sip_cfg->display_name); pj_strdup( pjsua_var.pool , &(pjsua_var.acc[acc_id].display) , &tmp ); -------------------------------------------------------------------------------------------------------- to assign myself display_name !! But when I enter -------------------------------------------------- pjsua_acc_create_uas_contact() pjsua_acc_create_uac_contact() ------------------------------------------------- I fount that ------------------------------------------ pjsua_var.acc[acc_id].display.ptr ------------------------------------------ become NULL !! I don't know what reason cause the result !! Maybe some place modified the "display" or the "acc" strucure is not alignment with 4 byte (I am working in the embeded system of mips ) !! Could any one give me a help ?? Thanks !! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20081021/7a59c49c/attachment.html>