How to specify the interval time for Janus to send register to SipServer?

General
1

I saw from the packet capture that SipServer responds to register with expire=360, and then Janus will randomly send a register message within 360 seconds. Now I want to control the interval time for sending this message instead of sending it at random time. I know that sending register message is implemented by sofia library. Is there any related configuration of sofia library that can achieve such setting?

2

The only configurable thing that comes to mind is this setting here:

but I’m not sure if the reply from the server overwrites this.

3

I tried changing this configuration, but it didn’t work

And I saw in the code that keepalive_interval is used on nua_create instead of nua_register, and from the documentation it seems to be send an OPTIONS message

4

It’s used on nua_create because it’s meant as a default that is borrowed when sending the REGISTER. I think you’ll find it in the Expires header of the REGISTER if you capture with Wireshark. OPTIONS is as good a message as any, if its purpose is to keep the outbound connection alive. Not sure why it matters when a refresh REGISTER is sent, if it’s actually sent before the timer the server gave expires.

5

Notice that you can manually refresh a registration too, using the Janus API. If you send the same request: "register" again that also includes a refresh: true, it will send a new REGISTER that updates the previous one. It may help you with programmatic refreshes at given times, originated at the client side.

6

OK, I understand, thanks

7

As u said registring the same number triggers refresh true automatically right? so no need to pass again refresh = true? when im registring same number… and whats the difference between keepalive and registrating again.. i know registrating again gives new session id and keepalive has same session id …other than this is there any difference or any use doing keepalive rather than refresh registration