Thread: Few questions on Voip/SIP!
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gorgezilla is offline gorgezilla
2011-04-04 , 17:09
Posts: 193 | Thanked: 104 times | Joined on Oct 2010 @ Romania
#1
Code:
[Profile]
DisplayName = SIP
IconName = general_sip
Manager = sofiasip
Protocol = sip
Priority = -10
VCardDefault = 1
VCardField = X-SIP
Capabilities = chat-p2p, voice-p2p, video-p2p
ConfigurationUI = osso-accounts
SupportsPresenceMessage = false
Default-cellular = true
Default-discover-binding = true
Default-loose-routing = false
Default-transport = auto
Default-keepalive-mechanism = auto
Default-keepalive-period = auto
Default-discover-stun = true

[KeepAlive]
ParamName = keepalive-interval
Value-WLAN_INFRA = 120
Value-GPRS = 600

[Presence available]
Name = pres_bd_sip_online
IconName = general_presence_online
Type = 2

[Presence offline]
Name = pres_bd_sip_offline
IconName = general_presence_offline
Type = 1

[Action chat]
Name = addr_bd_cont_starter_im_service_chat
IconName = general_sms
VCardFields = X-SIP
prop-org.freedesktop.Telepathy.Channel.ChannelType-s = org.freedesktop.Telepathy.Channel.Type.Text

[Action call]
Name = addr_bd_cont_starter_sip_out
IconName = general_sip
VCardFields = X-SIP,TEL
prop-org.freedesktop.Telepathy.Channel.ChannelType-s = org.freedesktop.Telepathy.Channel.Type.StreamedMedia
These are the parameters of the sip.profile found in /usr/share/osso-rtcom. The are few question I would like to ask the connoisseurs around the TMO. Those are being related to the keep-alive mechanism and keep alive period.
The first variable - keep alive mechanism - has 4 options in N900: Auto, Register, Options and Off.
As for the second variable - keep alive period - the values within the sip.profile parameters are 120 for wlan and 600 for gprs.

Thus said, my questions are:

1: What do these values stand for? (120, 600) and What does it mean?
2: If i increase or decrease these values, especially for the gprs, will it have an impact on the battery life?
3. What is the best option for the keep alive mechanism - choosing from the 4 options - in order to improve the battery life?
4. Did any of you tackle with this issue of voip/sip?

Please, take your time! No queueing!