Panasonic KX-TD500 System Reference Manual page 1113

Error Message No.
123 Deleting the card is impossible, for it is
assigned as a maintenance device.
124 Deleting the card is impossible, because it is
assigned for the intercept routing destination for
the Trunk group.
125 Deleting the card is impossible, because it is
assigned for doorphone call destination.
126 Attempting to delete the ATT which is specified
for incoming mode destination.
127 Attempting to delete the DISA which is specified
for incoming mode.
128 Attempting to assign NAG as Night Answer
Point of a CO line belonging to a Trunk Group
whose Incoming Mode (Night) is not FIXED.
130 Changing Tenant Service from "Yes" to "No" is
impossible as all ATT's are not assigned to
tenant 1.
131 Changing Tenant Service from "Yes" to "No" is
impossible as all music sources are not
assigned to tenant 1.
132 Changing Tenant Service from "Yes" to "No" is
impossible as all external pagers are not
assigned to tenant 1.
133 Changing Tenant Service from "Yes" to "No" is
impossible as all doorphones are not assigned
to tenant 1.
134 Changing Tenant Service from "Yes" to "No" is
impossible as all DISA's are not assigned to
tenant 1.
135 Changing Tenant Service from "Yes" to "No" is
impossible as all AGC's are not assigned to
tenant 1.
136 Changing Tenant Service from "Yes" to "No" is
impossible as all paging groups are not
assigned to tenant 1.
137 Changing Tenant Service from "Yes" to "No" is
impossible as all extensions are not assigned to
tenant 1.
138 Changing Tenant Service from "Yes" to "No" is
impossible as all trunk groups are not assigned
to tenant 1.
140 Deleting expansion shelf is impossible, as one
or more cards are assigned to the expansion
shelf.
Probable Cause
10-K-5
Countermeasure
Change the maintenance device.
Change the intercept routing destination.
Cancel the doorphone call destination.
Change the incoming mode destination.
Change the incoming mode.
Assign Incoming Mode (Night) to FIXED.
Assign ATT's to tenant 1.
Assign music sources to tenant 1.
Assign external pagers to tenant 1.
Assign doorphones to tenant 1.
Assign DISA's to tenant 1.
Assign AGC's to tenant 1.
Assign all paging groups to tenant 1.
Assign all extensions to tenant 1.
Assign all trunk groups to tenant 1.
Delete all the cards in the expansion shelf.