power usage

[nac]

what is the power usage of bluetooth and wireless impact on the phone.leaving them on will kill the battery

[stenlik]

Hi,

using WLAN is very power consuming, while BT not so much. There are few interesting documents on forum.nokia.com about power consumpiton you can find here:

http://www.forum.nokia.com/main/reso...er_management/

BR,
STeN

[nac]

so doing sip or voip is not practical isn't? either you have to walk with your charger

[stenlik]

Hi,

we're doing SIP 24hrs/7days/week over UMTS (not WLAN) and with this extensive use the user can live day as a maximum... SO having power adapter in both work and home is necessary))

BR,
STeN

[nly]

VoIP & streaming video and other real-time application developers should set the U-APSD accordingly for WLAN:

RSocket::SetOpt(KSoIpTOS, KProtocolInetIp, voice) (requires Network control in DevCert).

This will triple the talk time - no impact for stand-by (and should not be used for SIP keep alive messages) and shorten latency as well (as WLAN AP is not buffering packets).