Hi! it depends on which API you use. If you use pjsua-lib API then you can register different transports for the interfaces: Use pjsua_transport_create: http://www.pjsip.org/pjsip/docs/html/group__PJSUA__LIB__TRANSPORT.htm#g1c077d205f7df9fae39a179b2fe47533 provide in the pjsua_transport_config http://www.pjsip.org/pjsip/docs/html/structpjsua__transport__config.htm the "bound_addr" member. The create an account configuration and set the "transport_id" member: http://www.pjsip.org/pjsip/docs/html/structpjsua__acc__config.htm Then add the account: http://www.pjsip.org/pjsip/docs/html/group__PJSUA__LIB__ACC.htm#gd6e01e4e7ac7c8b1d9f629a6189ca2b2 I have not done that yet, but I think it should work. PS: Please always Cc the mailing list... regards Klaus Am 09.06.2010 17:43, schrieb Hadj Amor Hassen: > > Thank you for your help , may be i will try the second way ,configure > the pjsip,I hope it's possible. Do you have an idea about what shoud i > modify ? > > > > Le 09/06/2010 17:18, Klaus Darilion a ?crit : >> AFAIK you can not use 2 different pjsip instances within the same >> application. But you could start 2 applications (both using a single >> pjsip instance) on the same computer, or you can have a single >> application with a single pjsip instance and configure pjsip to listen >> on several interfaces. >> >> regards >> Klaus >> >> Am 09.06.2010 15:57, schrieb Hadj Amor Hassen: >>> Hi, >>> >>> I need to use pjsip twise time in the same computer ,i need to have two >>> pjsip stacks , ech pjsip work on a diff?rent interfaces and an >>> aplication control both stack . Is that possible using pjsip ? if yes >>> how I can do that ? >>> >>> >>> Thanks for help >>> >>> >>> _______________________________________________ >>> Visit our blog: http://blog.pjsip.org >>> >>> pjsip mailing list >>> pjsip at lists.pjsip.org >>> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >> >