N720 Database	SIP Account	DECT Handset	SIP Account	Web-Interface
0	1	1	Enabled
1	2	2	Enabled
2	3	3	Enabled
...	...	...

If you delete / disable the SIP account, then the other accounts will keep the same position in the database.

See the example below, the 2e SIP account is disabled via provisioning / removed via the web-interface and the other accounts will keep the same position in the database. If you add a new Mobile device via the web-interface, it will automatic use the first available position in the database, so in this example it will be Database entry 1 equals SIP account 2.

N720 Database	SIP Account	DECT Handset	SIP Account	Web-Interface
0	1	1	Enabled
1	2	2	Disabled
2	3	3	Enabled
...	...	...