Interoperability/CiscoCallManager
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Cisco CallManager (CCM)
Version 5.0 of Cisco CallManager supports SIP end-points for the first time.
Configure Snom Phone Indentity
Enter the IP address of CCM in the "Registrar" and "Outbound Proxy" field. Choose a phone number and use that number for "Authentication Username".
Add New End User
CCM→User Management→End User→Add New
Add Third-Party SIP Phone and DN
CCM→Device→Phone→Add New and select "Third-Party SIP phone". Fill out all required fields. Additionally, enter the phone/user number in the "Digest User" field.
After "Save" select "Line [1]" and enter the Directory Number ("400" in our case).
Check Registration Status
Finally reboot the snom phone and check the status CCM→Device→Phone→Find
