[cisco-voip] IT-to-IP Gateway

[Mark Holloway]

You would run CUBE (formerly IPIPGW) on your router. What codec are you using and what are the DTMF requirements by your provider?  If you are using a compressed codec such as G.729 you cannot use in-band DTMF.  You would need to use whatever DTMF your provider supports such as RFC 2833 or SIP INFO.  Some providers require out of band DTMF even if you are using G.711. 

On Mar 19, 2010, at 5:11 PM, Ratko Dodevski wrote:

> Hi, can someone please explain to me the purpose and the possibilities
> of an IP-to-IP gateway? I'm having some DTMF issues with my SIP trunk
> to telco, so someone suggested me an IP-to-IP gateway... is this just
> an ordinary VG in between with dial peers or there is something more?
> 
> Thanks
> 
> -- 
> Ratko
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