OK. I think I found the issue. The key is to add
rtp_symmetric=yes Here's what my final configuration looks like: [transport-udp] type=transport protocol=udp bind=0.0.0.0 ;; for within EC2 local_net=172.31.32.0/20 ;; For softphones within EC2 local_net=192.168.1.0/24 external_media_address=<publicIPOfEC2Instance> external_signaling_address=<publicIPOfEC2Instance> ;Templates for the necessary config sections [endpoint_internal](!) type=endpoint context=from-internal disallow=all allow=!all,ulaw direct_media=no rtp_symmetric=yes On Thu, Mar 5, 2015 at 5:52 PM, Sonny Rajagopalan < [email protected]> wrote: > Hello All, > > I have an Asterisk server v13.1.0 running on EC2 and I am able to connect > and register SIP devices and "see" them on the asterisk CLI. I am also able > to place calls, but I am not able to hear any audio on either end after the > call is picked up. > > I was wondering if you can tell me what a minimal configuration for > Asterisk on EC2 looks like. My current pjsip.conf configuration looks > like this: > > type=transport > protocol=udp > bind=0.0.0.0 > local_net=172.31.32.0/20 > ; In the following two lines, replace "<publicIP>" with the output of > ; curl -s http://169.254.169.254/latest/meta-data/public-ipv4 > external_media_address=<publicIP> > external_signaling_address=<publicIP> > > [endpoint_internal](!) > type=endpoint > context=from-internal > disallow=all > allow=ulaw > direct_media=no > > [auth_userpass](!) > type=auth > auth_type=userpass > > [aor_dynamic](!) > type=aor > max_contacts=1 > remove_existing=yes > ;Definitions for our phones, using the templates above > > ;; usernames and passwords etc. below > > > My security group configuration allows TCP, UDP posrt 5060 inbound, > outbound from/to 0.0.0.0/0 and TCP, UDP ports 10000-20000 from/to > 0.0.0.0/0. > > Should I turn on STUN for my zoiper softphones? Any specific flavor? > > What am I doing wrong? Any help appreciated. > >
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