If your old CUCM version is greater the 8.X, can you replace the ICT between the 2 call Managers with a SIP trunk and try again? George ... View more

Below you will find all the info you need: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/rel_notes/12_5_1/cucm_b_release-notes-cucm-imp-1251/cucm_b_release-notes-cucm-imp-1251_chapter_0110.html G ... View more

Hello, You may check the following, even if it is for a previous versions: https://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-version-50/100465-cdr-cmr-error.html#Solutions   G ... View more

In addition to what Haris is suggesting, can you clarify if you receive this message even if you place calls between the phones that are registered to the new CUCM?   G ... View more

Since you mention that for users it is working, have you Provisioned correct your "Active LDAP Synchronized User" on your CUCM, in order  to have Cisco Jabber? (CUCM Admin Page->User Management-> End User) Apart from assigning on the user as Controlled Device the Cisco Jabber, you will need to make sure that you have checked on the Service Settings-> "Home Cluster" and "Enable User for Unified CM IM and Presence (Configure IM and Presence in the associated UC Service Profile)" Moreover, you will need to make sure that you have assigned (at least) the "Standard CCM End Users" Role to the user.   Hope this helps, G ... View more

Hello,   You could ask for a demo for Telisca’ “Phone Remote”, but Jabber is the actual tool for your needs. ... View more

Alexandros Hi!,   You may need to check the result from the "Ctrl+Shift+D" when your Jabber client is trying to register?   G ... View more

Hello, You may set the (same) lines on each phone (shared Line). Just make sure that you will adjust the maximum number of calls and busy trigger to avoid receiving "Busy" when someone has already picked-up one call.   George ... View more

Then you should Go to Route-Plan Report and search for 13XXX. This will result of the currect Route Pattern 13XXX. Then you should press "Copy" and Replace 13XXX with 17XXX and Press Save.   Hope this Helps, George ... View more

Hello, You can try CUCM Admin Page -> Call Routing -> Route Plan report > Click on 'Go. For testing you can also try Dialed-Number-Analyzer (http://<cm-machine>/dna) to indentify which patterns you use.   George ... View more

In addition to the link that Carlo suggested, you may also find useful information on Project Workplace, under Devices Section: https://projectworkplace.cisco.com/#/en-us/product George ... View more

Hello, Mike is referring to the following section of the trunk configuration:   Hope this helps, G ... View more