Hi all, I currently working with pjsip and testing using the pjsua for linux. But i got a problem that i've searched around but found nothing. So i post this question here hope to get some suggestion I found pjsua works well with almost public sip server. But not work with IMS system, i already config the account setting with option --use-ims in the account confile file. Server always response with 403 ERROR CODE - GUL UNMATCHED. Note: IMS system work with other client using different sip stack. Appreciate your help Thanks, HoangHuy
