Hi, Platform: CentOS 5.5 x86_64 (updated) FreeSWITCH: git-07b8176 2010-08-10 18-51-06 -0400 OSPToolkit: 3.6.1 After installing OSPToolkit I enabled mod_osp and built and installed FreeSWITCH. When I issue load mod_osp I see this error: 2010-08-11 21:00:29.284157 [CRIT] switch_loadable_module.c:926 Error Loading module /opt/freeswitch/mod/mod_osp.so **/opt/freeswitch/mod/mod_osp.so: undefined symbol: OSPPTransactionSetSrcNetworkId** I'm out of my league here but I tried to get as much info as possible. /usr/lib64/osp/libosptk.a has the following symbols: $ nm /usr/lib64/libosptk.a [snip] osptransapi.o: 00000000000006ed T OSPPTransactionSetSrcNetworkId [snip] Checking mod_osp I see the following: $ nm /opt/freeswitch/mod/mod_osp.so 0000000000209570 d B64CACert 0000000000209568 d B64LCert 0000000000209560 d B64PKey U OSPPBase64Decode U OSPPCleanup U OSPPInit U OSPPProviderDelete U OSPPProviderNew U OSPPTransactionBuildUsageFromScratch U OSPPTransactionDelete U OSPPTransactionGetContext U OSPPTransactionGetDestProtocol U OSPPTransactionGetDestinationNetworkId U OSPPTransactionGetFirstDestination U OSPPTransactionGetNextDestination U OSPPTransactionGetNumberPortabilityParameters U OSPPTransactionGetOperatorName U OSPPTransactionIsDestOSPEnabled U OSPPTransactionNew U OSPPTransactionRecordFailure U OSPPTransactionReportUsage U OSPPTransactionRequestAuthorisation U OSPPTransactionSetCustomInfo U OSPPTransactionSetDestNetworkId U OSPPTransactionSetDestinationCount U OSPPTransactionSetDiversion U OSPPTransactionSetForwardCodec U OSPPTransactionSetNetworkIds U OSPPTransactionSetNumberPortability U OSPPTransactionSetOctets U OSPPTransactionSetPackets U OSPPTransactionSetReverseCodec U OSPPTransactionSetServiceType U OSPPTransactionSetSrcNetworkId <-- [snip] According to the nm manpage, the "U" means "undefined" so mod_osp does not seem to pick up libosptk.a (during linking?). Does anyone perhaps have a suggestion for a fix so I can file a bug with a fix? Thanks! Patrick