---

description: CSI module to save battery on mobile devices

labels:

- 'Stage-Alpha'

---

Stanzas are queued in a buffer until either an "important" stanza is

encountered or the buffer becomes full. Then all queued stanzas are sent

at the same time. This way, nothing is lost or reordered while still

allowing for power usage savings by not requiring mobile clients to

bring up their radio for unimportant stanzas.

`IQ` stanzas, smacks "stanzas" and `message` stanzas containing a body are

considered important. Groupchat messages must set a subject or have

the user's username or nickname in their messages to count as "important".

`Presence` stanzas are not "important".

All buffered stanzas that allow timestamping are properly stamped to

reflect their original send time, see [XEP-0203].

Use with other CSI plugins such as [mod_throttle_presence],

[mod_filter_chatstates] or [mod_csi_pump] is *not* supported.

Please use this module instead of [mod_csi_pump] if you want timestamping

and properly handled carbon copies.

The internal stanza buffer of this module is hardcoded to 100 stanzas.