Is it possible to Create Trunking between Cisco BE3K and BE6K or CUCM 8.0/9.0, such as at one branch CIsco BE3K and at other head office Cisco CUCM 8.0. So, one can do internal VOIP calling through WAN connectivity?
UC500, Business Edition 6000 and Cisco Unified Communications Manager are all currently validated for multisite system use.
Validation of direct BE3K to UCM interconnection is being assessed this week.
Trunking calls between BE3K and UCM via a SIP service provider would of course be supported today. Interconnection using CUBE on an ISR would also be supported - although we don't have any specific configuration guidance for this scenario at the moment. Basic calling between systems would be quite possible, although there may be limitations to supplementary services and calling features.