SIP DISA trunk with pause for DTMF

[pavopollo]

Hi there,

I'm trying to setup a SIP trunk to access our DISA prefix. I'm able to reach the DISA and get the dialling tone, but I would like to be able to send the whole number at once, something like DISA prefix + destination number in a single SIP header (or several if this is supported, which I highly doubt).

I've seen that RFC3966 is supported by the OXE since R11, which mentions some specific tel uris for providing pauses.

Do you know if there's some character that might be used in the To header or Request URI for specifying the pause?

Thanks!

[tot3nkopf]

Did you found a solution for this?
Maybe tel:+"DISAautsubst";ext="ars prefix + external number" ?