This was supposed to go to the list. I am now thoroughly confused. In the [voipms] stanza where endpoint is defined (type=endpoint), everything points to voipms. But in the [yealink] stanzas, I tried pointing everything to Steve, one item at a time, then both of them, and nothing changed. On 5/24/2023 10:00 AM, Stefan Tichy wrote: block quote Am Wed, May 24, 2023 at 09:40:18AM -0400 schrieb Steve Matzura: block quote On 5/24/2023 7:49 AM, Stefan Tichy wrote: block quote Am Tue, May 23, 2023 at 07:22:22PM -0400 schrieb Steve Matzura: block quote 1. Still can't register my phone The username and password are correct. I don't know what else to try. block quote end You can start a sip trace from the asterisk console. REGISTER sip:192.168.1.185:5060 SIP/2.0 block quote end block quote end .... block quote block quote Authorization: Digest username="Steve", realm="asterisk", [May 24 09:26:13] NOTICE[47903]: res_pjsip/pjsip_distributor.c:676 log_failed_request: Request 'REGISTER' from .....' - No matching endpoint found block quote end block quote end In the endpoint section there is a parameter identify_by (default: "username,ip"). "username" means, the the from-user is used. Use "yealink" or "Steve" for both user names. Using different names for a phone make it just more complicated. You might have to change the phone configuration. block quote [yealink] type = aor contact sip:Steve at 192.168.1.185 block quote end There should be no "contact" parameter for a phone. The phone sends the required information with the register request. block quote end