PJSIP on STM32

Running PJSIP on STM32F7Discovery

Demo video with sip_nuklear demo is here.

You can see more details about PJSIP on Embox here

Embox is able to run PJSIP on the following boards:

• 32F746GDISCOVERY board with 340 Kb RAM and 1 Mb ROM.
• 32F769IDISCOVERY board with 512 Kb RAM and 2 Mb ROM.

Configure and Build Embox

• You have to build Embox for your target board as described on this wiki page

Load Embox image into STM32F7-Discovery

You can see how to load Embox into STM32 board here.

Run PJSIP

• How to run simple_pjua you can see here
• How to run sip_nuklear you can see here

NOTE: Linphone

If you are using linphone, probably you will need some of the following things:

• Set up UDP (SIP)
• If you cannot register on a SIP server due to you are behind NAT, use Behind NAT/ Firewall (use uPnP), read more here.
• Disable all codecs except PCMU and PCMA

Troubleshooting

• If a connection to SIP server was not established, please make sure DNS is configured correctly in Embox:

# ping google.com

If ping doesn't work, then check your conf/mods.conf and check if include embox.net.lib.dns_fixed(nameserver="192.168.0.1") has correct nameserver.

• If you connected to SIP server but doesn't hear anything, please make sure Audio can be recorded and played well on your board, the tutorial is here.