User manual

得伯乐科技有限公司
DBL Technology Limited GoIP User Manual
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G. Signaling QoS
Quality of Service (QoS) is a network’s capacity to provide priority services, including the
special bandwidth, jitter control and delay (used for real-time and interactive traffic), and
improvement of the packet loss ratio. This parameter is used to mark the specified QoS label for the
call signaling packet to increase the network service quality.
3.5.2 SIP Phone
The SIP (Session Initiation Protocol) is a simple network protocol that has less hierarchy and
facilitates the initiation of calls among users. The calls may be conducted between two or more users,
which include the sounds, images, session, interactive games, and virtual reality.
3.5.2.1 Setting Mode
The VoIP channel of the GoIP can be set in the following three modes: single server, line setting,
and trunk gateway.
Figure 3-31 Setting Mode in the SIP Terminal
A) Single server mode: Multiple VoIP channels can share the same setting.
Line setting: Each VoIP channel can be served by different service providers or served by the
same service provider. In the latter case, multiple different telephone numbers (accounts) can be
registered on the same service, so that each telephone number is bound to the corresponding VoIP
channel.
B) Trunk Gateway: This mode is used to establish the connection or channel between the
softswitch and the gateway to realize the transit between two ends.