Yes it was still happening the last time I checked. I got the script to
re-write the value to get around the problem

On Fri, 19 Mar 2021, 18:15 Ricardo Martinez, <[email protected]> wrote:

> Hi Mark.
>
> Do you still have the same problem?.
>
> Did you manage to solve it?.
>
>
>
> Ricardo.-
>
>
>
> *De:* Users <[email protected]> *En nombre de *Mark Allen
> *Enviado el:* miƩrcoles, 3 de febrero de 2021 8:42
> *Para:* OpenSIPS users mailling list <[email protected]>
> *Asunto:* [OpenSIPS-Users] OpenSIPS 3.1 - Mid_Registrar AOR throttling &
> FreePBX/Asterisk Expiry problem
>
>
>
> I'm seeing strange behaviour using mid_registrar with AOR throttling...
>
>
>
> On initial registration, I do a mid_registrar_save():
>
>
>
>         mid_registrar_save("location","mp0v","sip:$tU@midreg",,"vipx");
>
>
>
> Return value from save is "1" (success) and then I successfully forward
> the REGISTER to the FreePBX/Asterisk main registrar (so far so good!).
>
>
>
> Asterisk returns a "200 OK" to OpenSIPS which has the registration expiry
> value set in both the "Expires" header and in the "Contact" header...
>
>
>
>         SIP/2.0 200 OK
>         Expires: 600
>         Contact: <sip:xxxx%[email protected]:5060>;expires=600
>
> Mid_Registrar forwards this on to the UAC after modifying the expiry value
> for AOR throttling, but only the "expires" setting in the "Contact" header
> gets modified...
>
>
>
>         SIP/2.0 200 OK
>         Expires: 600
>         Contact: <sip:[email protected]:50614;ob>;expires=300
>
>
>
> This leads to the unpredictable behaviour I'm seeing. MicoSIP seems to
> prefer to use the "Contact" header expiry value, and so works fine,
> however, Blink and a test MizuTech softphone seem to prefer the "Expires"
> header value, and so are not using the AOR throttling value.
>
>
>
> In the above example, Mid_Registrar is expecting the UAC to REGISTER again
> before 300 seconds have elapsed to maintain the registration, but Blink or
> the MizuTech softphone believe they should renew their registration before
> 600 seconds. When Mid_Registrar does not get the expected registration at
> around 300 seconds it assumes the connection is lost and de-registers on
> Asterisk. Finally, the UAC renews the registration at around 600 seconds
> meaning the UAC is effectively cycling between being available/unavailable.
>
>
>
> I have written a workaround in our config file to remove the invalid value
> before the "200 OK" gets forwarded to the UAC, but should mid_registrar be
> changing the expiry value in both places?
>
>
>
>
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>
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