[asterisk-users] Parallel dialoog with different Alert-Info headers

[Dirk-Willem van Gulik]

> On 23 Jul 2023, at 19:02, asterisk at phreaknet.org wrote:
> 
> On 7/23/2023 12:32 PM, Dirk-Willem van Gulik wrote:
>>> On 22 Jul 2023, at 23:40, asterisk at phreaknet.org wrote:
>>> 
>>> I'm assuming you mean at the device level, and that you want to send only the relevant header to each device?
>>> Use pre-dial handlers; a unique handler runs on each destination channel. With PJSIP, you're forced to do this anyways, but SIPAddHeader adds these to the calling channel first, which explains the problem you have now.
>> 
>> Aye - problem is - I have some 79XX phones for which I am very reliant on functionality from https://usecallmanager.nz/documentation-overview.html that is not in PJSIP.
> 
> I hear you... you're not the first person that's told me that. It's one of the top reasons I hear for staying on chan_sip.
> Unfortunately, the author of those patches hasn't expressed interest in porting the functionality to PJSIP due to some misconceptions about PJSIP development. Some of it I might take a stab at to allow some of my users to move over, but not until outstanding patches have cleared; I have some of these phones but don't really use them, so it's lower on my priority list.

Aye - no worries - it is what it is & there is a moment that either enough people want to scratch the itch its of adding the functionality to PJSIP -- or that these phones naturally fade into history.

That is always the problem with things that are stable and good enough. 

With kind regards,

Dw.