Unified Communications Infrastructure

Hi,we plan to upgrade from cucm 11.5 to 14. After taking a look into the compatibilty list, there are a few questions:8941 phones are not deprecated, but they are not supported. Has anyone tested, if 8941 phones are working with CUCM14?Does C881-V-K9...

Hi guys,Few days ago this happened - outgoing call were dropped and not working.We have an old UC560 connected to SIP provider for both incoming/ outgoing calls. Incoming calls are ok, so no problem with the codecs (I think so).When making outgoing c...

Hi,I have CUCM 10.5 installed and is in need to renew tomcat-trust certificate. Whenever i upload the certificate from OS admin it gets deleted automatically after 10 mins. I am following procedure of uploading certificates from OS admin -- It shows ...

Hello there,I have a Cisco unity and CUCM 10.5I want to restrict access to one of unity voice mail numbers, lets say number 1000 from only the phone extension #1000, can this be achieved? - currently any user can access any voice mail number form his...

Hello,I have a DN which occasionally gets fax calls. Is there a way for CUBE or CUCM to detect that the call is T.38 and redirect the call to the sites fax number and not their reception extension?Thank you!

Hi All, I have been assigned a task to install and integrate  "Cisco Instant Connect" into network. What are the prerequisites for  "Cisco Instant Connect"? i-e do i need to have CUCM/CME. How can i get Cisco "Instant Connect Server" .OVA File? Looki...

Hi, renewing the certificate (self signed ) what is the impact , how the services affected . 2445 / TCPProvide trust verification service to endpoints.8443 / TCPAllows access to Control Center - Feature and Network service between nodes.9443 / TCPPho...

Hi Would like to know if there is a way we could modify the SIP SDP message. Basically we see the wrong IP address in the "o" field of the SDP message because of which the calls are failing. So, is there a way to modify the SDP field to have the corr...

I'm having an issue with SIP trunk on CUBE trying to perform attended transfer. I'm following the RFC 5359 that demonstrates the 'Best Current Practice' but having no luck. After sending the REFER request, there is no OK response from CUBE. When I se...

Hi,If you were to ask to harden UC servers, what guidelines do you follow for system and application?Appreciate if you can share anything. Thank you.