Snom m9 DECT Administrator's Manual page 23

Multiple SIP Accounts with Multiple Handsets
1. Use Identity 1-9 for configuring all available SIP accounts on the base station as shown below:
2. Click the Handsets tab of each Identity, and assign a unique handset IPUI to each Identity.
3. Each handset should reflect the display name/username of the Identity to which it has been assigned:
Example Setups
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