Hi Benny me again. Well, I'm trying to integrate the setopt function on the symban, for using it over symbian_ua. I remember that the pj_sock_setsockopt wrapping for symbian is not implemented (perhaps I'm wrong). Here I found some information about setopt and yes, I'm planning to set de ToS field of IPv4. http://wiki.forum.nokia.com/index.php/TSS000650_-_Increasing_WLAN_power_efficiency_for_full-duplex_VoIP_and_Video_applications In order to set the Access Category to Voice (AC_VO), DSCP QoS bits of outgoing IP packet headers (TOS field in IPv4, TC in IPv6) must be modified. This can be done at socket level (RSocket) as follows: iSocket.SetOpt( KSoIpTOS, KProtocolInetIp, 0xE0 ); After this, the WLAN driver will recognize sent packets as belonging to the Voice Access Category. U-APSD power save scheme will be enabled, provided that it is supported also by the WLAN access point and even on this link http://wiki.forum.nokia.com/index.php/VoIP_developer_guidelines_for_S60 - the application sets the DSCP bits using Symbian Socket API and can reduce battery consumption upto 25% using AC_VO: - Rsocket::SetOpt(KSoIpTOS, KProtocolInetIp, xx) - Where xx is the hex DSCP value multiplied by for (i.e., shifted left by two bits). - Power save is enabled for voice by default if the AP uses U-APSD power save (also know as WMM power save). If the AP only supports "legacy" power save, then we switch to active mode during the data transfer. There isn't any API to control this behaviour. The platform is for S60 3rd Edition and FP1. I'm really new working over Symbian and I have no clue. Thanks in advance. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20081024/d4eeb95b/attachment.html>
