Trunk fails to register

Hi Billsimon,

We able to install Asterisk 20 with freepbx 16 working fine, but we getting below trunk registration error in pjsip configuration.
Error:
WARNING[3333]: res_pjsip_outbound_registration.c:1047 schedule_retry: No response received from ‘sip:xxxxxx:5060’ on registration attempt to

but while checking dashboard trunk in online only but in cli we getting connection reattempt warning regularly. please help on this

Hi, since you are on AWS, ensure your EC2 security group allows traffic inbound to your SIP port (udp/5060 probably) from your SIP provider. Also ensure all outbound traffic is allowed through the security group. Also check Asterisk SIP Settings and make sure the NAT section shows your public IP address in the external IP field and your VPC subnet in the local nets field.

Hi billsimon,

We open 5060 with UDP port locally & open all port in outbound, Same security group work in chansip chan pjsip alone getting that error message.
WARNING[3333]: res_pjsip_outbound_registration.c:1047 schedule_retry: No response received from ‘sip:xxxxxx:5060’ on registration attempt to

but while check the call flow working fine but warning alone keep on coming, please help us to fix this…

This sounds very strange. Assuming that your incoming calls are working ok:

Some trunks don’t require registration, such as one with ‘IP authentication’ where you configure your server IP address on the provider’s portal. In that case, in the trunk set Registration to None and you should be good to go. You should set Match (Permit) to the list of addresses from which the provider can send calls.

Some providers have you register to two or more servers (using separate trunks), so that if one of their servers is down they can send calls from another. In that case, check the status of all the relevant trunks.

Possibly because of too-frequent registrations, the provider is ignoring some of them.

At the Asterisk command prompt, type
pjsip show registrations
to see a list of trunks and their registration status. Then, type
pjsip show registration yourtrunkname
to see details.

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