Zycoo CooVox-U80 User Manual page 53

even if the network is congested with other traffic.
TOS for Signaling Packets: Sets TOS for SIP packets.
TOS for RTP audio packets: Sets TOS for RTP audio packets.
TOS for RTP video packets: Sets TOS for RTP video packets.
COS Priority for Signaling packets:Sets 802.1p priority for SIP packets.
COS Priority for RTP audio packets:Sets 802.1p priority for RTP audio packets.
COS Priority for RTP video packets: Sets 802.1p priority for RTP video packets.
DNS SRV Look Up: Enable DNS SRV lookups on outbound calls.
Relax DTMF: Relax DTMF handling.
RTP TimeOut(sec):Terminate call if there is 60 seconds of no RTP or RTCP activityon the
audio channelwhen we're not on hold. This feature enables the ability tohangupa call in the
case of a phone disappearing from the network, for instanceif the phone loses power.
RTP Hold TimeOut(sec): Terminate call if 300 seconds of no RTP or RTCP activity on the
audio channelwhen on hold.
Add 'user=phone' to URI: Enable this option if the SIP provider requires ";user=phone" on
URI.
UserAgent: Allows you to change the user agent string. The default user agent string also
contains the Asteriskversion. If you don't want to expose this, change theuseragent string
here.
Premature Media:If enabled, SIP channel will not send 183 SessionProgress for early media.
Before enabling premature media make sure thatprogressinband is configured as never.
Progress Inband:Sets the SIP channels to use inbandsignaling or not.
Outbound SIP Registrations
The "Outbound SIP Registrations"configures the register behaviorsofCooVox IPPBX system when
registering as a client to the other SIP servers.