buildroot

config BR2_PACKAGE_LIBOSIP2

    bool "libosip2"

    help

      GNU SIP (Session Initiation Protocol)

      This library aims to provide multimedia and telecom software

      developers an easy and powerful interface to initiate and

      control SIP based sessions in their applications.

      SIP is a open standard replacement from IETF for H323.

​

      http://www.gnu.org/software/osip/