Belle-sip is a modern library implementing SIP (RFC 3261) transport,
transaction and dialog layers.
http://www.linphone.org/technical-corner/belle-sip
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Thomas: select mbedtls as support for crypto is needed in bctoolbox]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
