[Asterisk-Users] oh323 driver and RFC2833

[Michael Manousos]

Which version of the driver do you use?

Fernando Herrera wrote:
> Hello,
>  
> I have installed oh323 channel driver. Outgoing calls to H.323 world do 
> not include RFC2833 in the outgoing TerminalCapabilitiesSet despite that 
> userInputMode=RFC2833 has already been set.
>  
> Does anyone know how to make RFC 2833 DTMF relay work over oh323 channel?
>  
> Kind regards,
>  
> */Fernando Herrera/*
>  
> 
>     ------------------------------------------------------------------------
>     *De:* Fernando Herrera [mailto:fherrera at iplan.com.ar]
>     *Enviado el:* Miércoles, 21 de Septiembre de 2005 12:51
>     *Para:* 'asterisk-users at lists.digium.com'
>     *Asunto:* [Asterisk-Users] Help with asterisk-oh323 driver
> 
>      
> 
>         DV,
>          
>         Have you solved this? I am facing the same problem. I am running
>         Asterisk 1.0.9 and outgoing TCS does not show the
>         receiveRTPAudioTelephonyEventCapability.
>          
>         Kind regards,
>          
>         */Fernando Herrera/*
>          
>         ------------------------------------------------------------------------
> 
> Hi all,
> 
> Sorry if this has been answered previously, but I have not had any
> luck trying to find it.
> 
> I am trying to connect my Asterisk server (1.0 stable, Fedora Core 2,
> kernel 2.6.8-1.521) to connect to a gateway that can only support
> H323. I have installed the asterisk-oh323 channel driver (version
> 0.6.3b) using Open H323 1.13.5 (patched as per asterisk-oh323's
> instructions) and PWLIB 1.6.6. This is all working fine for very basic
> call setup and tear down, from any of my SCCP, SIP, H323 or POTS
> (X100P card) phones.
> 
> NB: The gateway only handles signalling, so all media will flow
> between the endpoints and the gateway will handle signalling to the
> receiving gateway, as such (excuse the dodgy diagram :) ):
> 
>     ----------------->[Gateway]<-----------
>     |                                              |
> (H323)                                (H323 or MGCP/ISUP)
>     |                                              |
>    V                                             V
> [Asterisk]-----------(RTP)----------[Terminating gateway]
>    |
> (Signalling + RTP)
>    |
> (Zaptel/SIP/H323/SCCP phones)
> 
> 
> There are some requirements for me to connect to this switch:
> 
> 1. I must support H245 tunneling and faststart (working fine)
> 2. I must dynamically negotiate the codecs (i.e. send multiple codecs
> as part of the faststart and the softswitch will decide which of the
> codecs to use based on the terminating gateway's capabilities). The
> codec picked will be passed back in the return faststart from the
> gateway.
> 3. It must support RFC2833 for OOB DTMF.
> 
> The problems I am facing are that my faststart in my setup messages
> only ever has one codec, regardless of what I have set in the [codecs]
> section of oh323.conf, and even if I specify userInputMode=RFC2833 in
> oh323.conf my TCS does not include the capability
> receiveRTPAudioTelephonyEventCapability hence RFC2833 is never
> neogitated. I'm sure this is just a minor tweak of the source code,
> but not being an expert in C I am having problems figuring out what
> needs to be done and where.
> 
> Any help on this matter would be appreciated.
> 
> Cheers
> DV
> 
>          
> 
> 
> ------------------------------------------------------------------------
> 
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