15.6.3 Quality of Service (QoS)
Quality of Service (QoS) refers to both a network's ability to deliver data with minimum
delay, and the networking methods used to provide bandwidth for real-time multimedia
applications.
Type of Service (ToS)
Network traf
fic can be classified by setting the ToS (Type of Service) values at the data source
(for example, at the LTE Device) so a server can decide the best method of delivery, that is the
least cost, fastest route and so on.
15.6.4 Phone Services Overview
Supplementary services such as call hold, call waiting, and call transfer. are generally
available from your VoIP service provider. The LTE Device supports the following services:
l Call Hold
l Call Waiting
l Making a Second Call
l Call Transfer
l Three-Way Conference
l Do not Disturb
NOTE
To take full advantage of the supplementary phone services available through the LTE Device's phone
ports, you may need to subscribe to the services from your VoIP service provider
.
The Flash Key
Flashing means to press the hook for a short period of time (a few hundred milliseconds)
before releasing it. On newer telephones, there should be a "flash" key (button) that generates
the signal electronically. If the flash key is not available, you can tap (press and immediately
release) the hook by hand to achieve the same effect. However, using the flash key is
preferred since the timing is much more precise. With manual tapping, if the duration is too
long, it may be interpreted as hanging up by the LTE Device.
You can invoke all the supplementary services by using the flash key.
Europe Type Supplementary Phone Services
This section describes how to use supplementary phone services with the Europe Type Call
Service Mode. Commands for supplementary services are listed in the table below.
After pressing the flash key, if you do not issue the sub-Command before the default sub-
Command time-out (2 seconds) expires or issue an invalid sub-Command, the current
operation will be aborted.
LTE CPE B2368
User Guide
15 VoIP
Issue 03 (2019-01-31) Copyright © Huawei Technologies Co., Ltd. 130
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