The included SpanDSP 0.0.6-pre11 is over 3 years old. Request an update to pre21 which was released in August this year. Source: http://www.soft-switch.org/downloads/spandsp/ A .spec file is included with the source tarball.
spandsp-0.0.6-0.8.pre21.el5 has been submitted as an update for Fedora EPEL 5. https://admin.fedoraproject.org/updates/spandsp-0.0.6-0.8.pre21.el5
spandsp-0.0.6-0.8.pre21.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/spandsp-0.0.6-0.8.pre21.fc18
spandsp-0.0.6-0.8.pre21.el6 has been submitted as an update for Fedora EPEL 6. https://admin.fedoraproject.org/updates/spandsp-0.0.6-0.8.pre21.el6
spandsp-0.0.6-0.8.pre21.fc16 has been submitted as an update for Fedora 16. https://admin.fedoraproject.org/updates/spandsp-0.0.6-0.8.pre21.fc16
spandsp-0.0.6-0.8.pre21.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/spandsp-0.0.6-0.8.pre21.fc17
Package spandsp-0.0.6-0.8.pre21.el6: * should fix your issue, * was pushed to the Fedora EPEL 6 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=epel-testing spandsp-0.0.6-0.8.pre21.el6' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-EPEL-2012-13214/spandsp-0.0.6-0.8.pre21.el6 then log in and leave karma (feedback).
New package has been pushed to stable. Closing.