hello, I have little problem :) I have embeded device on ARM CPU 255 architecture 5TE and i cross compile pjsip library as: export CFLAGS="-pipe -I/usr/toolchain-arm-26/usr/include -I/usr/toolchain- arm-26/include --sysroot=/usr/toolchain-arm-26/ -isysroot /usr/toolchain- arm-26-mtune=xscale -mabi=aapcs-linux -msoft-float" ./configure --prefix=/opt/emtest/arm_install --host=arm-linux --disable-oss make dep && make In my toolchain is used uclibc version 0.9.29 non standart libc. For my testing purpose i using pjsua test application. but when i starting aplication : ./pjsua --id sip:pc1 at 192.168.32.17 --registrar sip:192.168.32.123 --realm asterisk --username pc1 --password heslo --app-log-level 6 --log-level 6 i get error: 15:41:46.080 sip_reg.c Invalid Contact: "(null)<sip:pc1 at 192.168.32.17:5060(null)>(null)" here is full output: 15:41:45.535 os_core_unix.c pjlib 1.4.5 for POSIX initialized 15:41:45.540 sip_endpoint.c Creating endpoint instance... 15:41:45.548 pjlib select() I/O Queue created (0x21c500) 15:41:45.550 sip_endpoint.c Module "mod-msg-print" registered 15:41:45.553 sip_transport. Transport manager created. 15:41:45.557 sip_endpoint.c Module "mod-pjsua-log" registered 15:41:45.560 sip_endpoint.c Module "mod-tsx-layer" registered 15:41:45.563 sip_endpoint.c Module "mod-stateful-util" registered 15:41:45.565 sip_endpoint.c Module "mod-ua" registered 15:41:45.568 sip_endpoint.c Module "mod-100rel" registered 15:41:45.570 sip_endpoint.c Module "mod-pjsua" registered 15:41:45.573 sip_endpoint.c Module "mod-invite" registered 15:41:45.856 pa_dev.c PortAudio sound library initialized, status=0 15:41:45.857 pa_dev.c PortAudio host api count=1 15:41:45.860 pa_dev.c Sound device count=2 15:41:45.868 pjlib select() I/O Queue created (0x22d654) 15:41:45.880 conference.c Creating conference bridge with 254 ports 15:41:46.024 sip_endpoint.c Module "mod-evsub" registered 15:41:46.026 sip_endpoint.c Module "mod-presence" registered 15:41:46.029 evsub.c Event pkg "presence" registered by mod-presence 15:41:46.031 sip_endpoint.c Module "mod-refer" registered 15:41:46.033 evsub.c Event pkg "refer" registered by mod-refer 15:41:46.035 sip_endpoint.c Module "mod-pjsua-pres" registered 15:41:46.038 sip_endpoint.c Module "mod-pjsua-im" registered 15:41:46.041 sip_endpoint.c Module "mod-pjsua-options" registered 15:41:46.044 pjsua_core.c 1 SIP worker threads created 15:41:46.046 pjsua_core.c pjsua version 1.4.5 for arm-unknown-linux-gnu initialized 15:41:46.049 sip_endpoint.c Module "mod-default-handler" registered 15:41:46.054 pjsua_core.c SIP UDP socket reachable at 192.168.32.17:5060 15:41:46.059 udp0x243d70 SIP UDP transport started, published address is 192.168.32.17:5060 15:41:46.062 pjsua_acc.c Account <sip:192.168.32.17:5060> added with id 0 15:41:46.068 tcplis:5060 SIP TCP listener ready for incoming connections at 192.168.32.17:5060 15:41:46.071 pjsua_acc.c Account <sip:192.168.32.17:5060;transport=TCP> added with id 1 15:41:46.074 pjsua_acc.c Account sip:pc1 at 192.168.32.17 added with id 2 15:41:46.080 sip_reg.c Invalid Contact: "(null)<sip:pc1 at 192.168.32.17:5060(null)>(null)" 15:41:46.083 pjsua_acc.c Client registration initialization error: Invalid URI (PJSIP_EINVALIDURI) [status=171039] 15:41:46.085 pjsua_acc.c Unable to create registration: Invalid URI (PJSIP_EINVALIDURI) [status=171039] 15:41:46.089 pjsua_media.c RTP socket reachable at 192.168.32.17:4000 15:41:46.091 pjsua_media.c RTCP socket reachable at 192.168.32.17:4001 15:41:46.098 pjsua_media.c RTP socket reachable at 192.168.32.17:4002 15:41:46.100 pjsua_media.c RTCP socket reachable at 192.168.32.17:4003 15:41:46.107 pjsua_media.c RTP socket reachable at 192.168.32.17:4004 15:41:46.109 pjsua_media.c RTCP socket reachable at 192.168.32.17:4005 15:41:46.116 pjsua_media.c RTP socket reachable at 192.168.32.17:4006 15:41:46.118 pjsua_media.c RTCP socket reachable at 192.168.32.17:4007 >>>> Account list: [ 0] <sip:192.168.32.17:5060>: does not register Online status: Online [ 1] <sip:192.168.32.17:5060;transport=TCP>: does not register Online status: Online *[ 2] sip:pc1 at 192.168.32.17: 100/In Progress (expires=-1) Online status: Online Buddy list: -none- When i try enter account information from menu i get same result: >>> +a Your SIP URL: (empty to cancel): sip:pc1 at 192.168.32.17 URL of the registrar: (empty to cancel): sip:192.168.32.123 Auth Realm: (empty to cancel): asterisk Auth Username: (empty to cancel): pc1 Auth Password: (empty to cancel): heslo 15:51:04.794 pjsua_acc.c Account sip:pc1 at 192.168.32.17 added with id 2 15:51:04.798 sip_reg.c Invalid Contact: "(null)<sip:pc1 at 192.168.32.17:5060(null)>(null)" 15:51:04.798 pjsua_acc.c Client registration initialization error: Invalid URI (PJSIP_EINVALIDURI) [status=171039] 15:51:04.799 pjsua_acc.c Unable to create registration: Invalid URI (PJSIP_EINVALIDURI) [status=171039] >>> On 386 it works fine. i try last trunk version 2985. and pjproject-1.4.5.tar.bz2 from download page too and i get same error. Can me somebody help? ...thank you