Could someone help me to configure sip trunk beetween openscape bussiness X8 and CUCM 10.5 ?. i have follow the guide https://www.cisco.com/c/dam/en/us/solutions/collateral/enterprise/interoperability-portal/984209.pdf. whithout succès. please help B...

hellothese is additionnal hardware that must be installed in a 2600 router to implemante VoIP with CCM? if yes how to do it?