[SR-Users] Redirect server for load balancing and HA

[Olle E. Johansson]

On 13 Mar 2015, at 18:45, Daniel Tryba <d.tryba at pocos.nl> wrote:

> On Friday 13 March 2015 17:14:31 Olle E. Johansson wrote:
>>> I'd love to find out why this is the case. I would have estimated 9 out of
>>> 10 people need to fine-tune DTMF + codec settings in Asterisk.
>> The most common solution I've seen is to have kamailio use 10 different
>> ports and have 10 different matching peers in the Asterisk SIP config to
>> select settings.
> 
> Cumbersome, why not just use some custom headers (stored in usr_preferences)?
There are settings you can't set from the dialplan, but when you can this is a good
idea.

/O
> 
> kamailio stuff:
>        if($avp(src_dtmfmode)!="")
>        {
>                append_hf("X-DTMFMode: $avp(src_dtmfmode)\r\n");
>        }
> 
> asterisk stuff:
> exten => _[+X].,n,ExecIf($[${LEN(${SIP_HEADER(X-DTMFMode)})} > 
> 0]?SIPDtmfMode(${SIP_HEADER(X-DTMFMode)}))
> 
> The other way around is bit more tricky. YOu have to dial using the M option 
> (i'm using AGI instead of RT):
> M(setdtmftx^".$row['dtmftx'].")
> 
> [macro-setdtmftx]
> exten => s,1,NoOp()
> exten => s,n,SIPDtmfMode(${ARG1})
> exten => s,n,MacroExit
> 
> 
> -- 
> 
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