Hi, On other site, the SIP provider need to support presence subscription. CUCM can subscribe to monitor a number over SIP trunk with SIP subscribe messages.
Please check with the SIP provider. Regards, Andy On Mon, Jun 2, 2014 at 7:24 PM, Minh Dang <dangquangm...@vnpro.org> wrote: > Dear group, > > > > We have some 7975s and would like to program the buttons on those to > monitor the status of DID number of the sip trunk. Our users want to know > if the DID numbers are available or not. Then they press the button to > select the line and make the call. > > > > Please advise some ways to do this. > > > > Thank you for your time, > > > > Minh > > > > _______________________________________________ > Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: > > iPexpert on YouTube: www.youtube.com/ipexpertinc >
_______________________________________________ Free CCIE R&S, Collaboration, Data Center, Wireless & Security Videos :: iPexpert on YouTube: www.youtube.com/ipexpertinc
