How to set up Asterisk 13 realtime sip properly without rtcachefriends=yes?

Question

Asterisk

Good afternoon!
I'm trying to move from static sip.conf to realtime. It will be necessary to regularly make changes to the configuration, such as for example callerid. I created a plate, filled it out, set everything up in accordance with numerous manuals and set it up, as recommended in many

rtcachefriends=yes
rtupdate=yes
ignoreregexpire=yes

Everything worked, the devices were re-registered within 20 minutes and fully earned. But rtcachefriends=yesI am not satisfied, because in order to update the information I need to either do sip prune realtime peerorsip reload , which leads to a temporary dump of devices until re-registration. I tried to put rtcachefriends=no.
As a result, the devices consider themselves registered, but there is no way to get through to them.
Enabled debug on the peer. When I tried to call him, the log fell

INVITE sip:[email protected]:49795;rinstance=c7039f8233d45d0c SIP/2.0
Via: SIP/2.0/TCP 10.100.1.125:5060;branch=z9hG4bK07aa7564
Max-Forwards: 70
From: "6767" <sip:[email protected]>;tag=as588405ff
To: <sip:[email protected]:49795;rinstance=c7039f8233d45d0c>
Contact: <sip:[email protected]:5060;transport=TCP>
Call-ID: [email protected]:5060
CSeq: 102 INVITE
User-Agent: Asterisk PBX GIT-13-11d05fc
Date: Mon, 16 Jan 2017 10:07:55 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 281

However, tcpdump didn't drop any packets.
I continue the diagnostics, but I hope for useful recommendations.

Answer 1

It looks like the RT mechanism is broken in my version of Asterisk. Even with rtcachefriends=yes, strange problems appeared in the system operation - calls from some devices did not occur through external trunks, despite the fact that the trunks were set to static. The behavior is similar to the one described - the package is indicated in the debug - in fact, there is no exchange of packages. There are no errors in the logs. There is no way to debug in production, I’m postponing the idea until the planned system update.

Answer 2

I'm set up like this

rtcachefriends=yes
;rtsavesysname=yes
;rtupdate=yes
rtautoclear=yes
;ignoreregexpire=yes

Works