Asterisk15 - with Sip how to config Telfort_NL ? ExperiaBox 7519 v8

Installing and Using OpenWrt
1

Hi there,

I decided finally to setup asterisk for my ExperiaBox v8. I'm a total noob if it becomes to asterisk so i hope someone could help me out.
I found the following settings in the original firmware

Now I've to choose between chan_sip and pjsip. What would be the better choice?
I tried first chan sip but have some doubts about it...

[general]
context=foreign_in                  
allowoverlap=yes                     
; udpbindaddr=[::]:5060
udpbindaddr=0.0.0.0:5060
tcpenable=no                       
transport=udp                     
srvlookup=yes      
subscribe_network_change_event=yes
nat=force_rport,comedia
outboundproxy=145.7.97.61


register => "aaba235xxxx@ims.imscore.net":mypassword@145.7.97.61:5060/+3171785xxxx




[sip]
context=foreign_in
type=peer
host=ims.imscore.net
port=5060
fromdomain=ims.imscore.net
insecure=port,invite
dtmfmode=rfc2833
disallow=all
allow=gsm,alaw,ulaw
defaultuser=aaba235xxxx@ims.imscore.net
fromuser=aaba235xxxx@ims.imscore.net
secret=mypassword
callerid=+3171785xxxx

[telfort]
context=foreign_in
type=peer
host=ims.imscore.net
port=5060
fromdomain=ims.imscore.net
insecure=port,invite
dtmfmode=rfc2833
disallow=all
allow=gsm,alaw,ulaw 
defaultuser=aaba235xxxx@ims.imscore.net 
fromuser=aaba2350xxxx@ims.imscore.net 
secret=mypassword

[311]
callerid=311
context=all
type=friend
host=dynamic
defaultuser=311
secret=secretpass-for-311
videosupport=yes
allow=ulaw,alaw
deny=0.0.0.0/0.0.0.0        ; only allow from LAN
permit=192.168.0.0/16
permit=192.168.1.1/24
permit=172.16.0.0/12
permit=10.0.0.0/8
2

Hey,
I've just rewritten the Asterisk wikipage, so you might find some help there: https://openwrt.org/docs/guide-user/services/voip/asterisk

Both should work equally fine, however chan_sip is getting old and doesn't receive core support anymore, so it's recommendet to use pjsip for new installations.
I use pjsip exclusively, so I can't comment on your configuration, but there are some people here that use chan_sip.
Have you tested your configuration? If it doesn't work, you can post the logs here so we can have a look what's going wrong.