# Bucket

A bucket is the amount of memory required to add one digit string. The following feature resources are measured in buckets:

- multiline sets button digit string

- speedcall digit string

- system digit string

- transient digit string.

The Unit Size gives the number of bytes required to add one bucket. A bucket holds one digit string of up to seven digits in length. Each digit string of seven digits or less requires one bucket, while digit strings with more than seven digits require more buckets. For example:

- Adding the digit string 8811 requires 1 bucket.

- Adding the digit string 95922122 requires 2 buckets.

- Adding the digit strings 881 and 882 requires 2 buckets.

- Adding a 26-digit string requires 26/7 (rounded) = 4 buckets.