Hi all, something seems strange to me. I modified the config_site.h file following : //#define PJ_CONFIG_MINIMAL_SIZE #define PJ_CONFIG_MAXIMUM_SPEED .... #elif defined(PJ_CONFIG_MAXIMUM_SPEED) # define PJ_SCANNER_USE_BITWISE 0 # undef PJ_OS_HAS_CHECK_STACK # define PJ_OS_HAS_CHECK_STACK 0 # define PJ_LOG_MAX_LEVEL 12 # define PJ_ENABLE_EXTRA_CHECK 1 # define PJ_IOQUEUE_MAX_HANDLES 5000 # define PJSIP_MAX_TSX_COUNT ((640*1024)-1) # define PJSIP_MAX_DIALOG_COUNT ((640*1024)-1) # define PJSIP_UDP_SO_SNDBUF_SIZE (24*1024*1024) # define PJSIP_UDP_SO_RCVBUF_SIZE (24*1024*1024) # define PJ_DEBUG 0 # define PJSIP_SAFE_MODULE 0 # define PJ_HAS_STRICMP_ALNUM 0 # define PJ_HASH_USE_OWN_TOLOWER 1 # define PJSIP_UNESCAPE_IN_PLACE 1 # ifdef PJ_WIN32 # define PJSIP_MAX_NET_EVENTS 10 # endif # define PJSUA_MAX_CALLS 200 #endif I made make distclean make dep make make install I alse changed the maximum possible amount of sockets acceptable by select() in my OS config files. and I recompiled my application. I sent 50 calls to my application but I can see that only 31 are accepted. The others receive a "busy" answer. Is there something else to modify than the config_site.h file ? Regards, Frederic -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080908/c4b389bc/attachment-0001.html -------------- next part -------------- A non-text attachment was scrubbed... Name: fclement.vcf Type: text/x-vcard Size: 389 bytes Desc: not available Url : http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080908/c4b389bc/attachment-0001.vcf