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LTE TDD B2268H
User Guide
13 VoIP
Issue 01 (2014-01-15)
Copyright © Huawei Technologies Co., Ltd.
94
Figure 13-1
VoIP > SIP > SIP Service Provider
The following table describes the labels in this screen.
Page 102 / 155
LTE TDD B2268H
User Guide
13 VoIP
Issue 01 (2014-01-15)
Copyright © Huawei Technologies Co., Ltd.
95
Table 13-1
VoIP > SIP > SIP Service Provider
LABEL
DESCRIPTION
SIP Service Provider Selection
Service Provider
Selection
Select the SIP service provider profile you want to use for the SIP
account you configure in this screen. If you change this field, the screen
automatically refreshes.
General
SIP
ServiceProvider
Select this if you want the LTE Device to use this SIP provider. Clear it if
you do not want the LTE Device to use this SIP provider.
SIP Service
Provider Name
Enter the name of your SIP service provider.
SIP Local Port
Enter the LTE Device's listening port number, if your VoIP service
provider gave you one. Otherwise, keep the default value.
Main SIP Server
Address
Enter the IP address or domain name of the SIP server provided by your
VoIP service provider. You can use up to 95 printable ASCII characters.
It does not matter whether the SIP server is a proxy, redirect or register
server.
SIP Server Port
Enter the SIP server's listening port number, if your VoIP service
provider gave you one. Otherwise, keep the default value.
REGISTER
Server Address
Enter the IP address or domain name of the SIP register server, if your
VoIP service provider gave you one. Otherwise, enter the same address
you entered in the
SIP Server Address
field. You can use up to 95
printable ASCII characters.
REGISTER
Server Port
Enter the SIP register server's listening port number, if your VoIP service
provider gave you one. Otherwise, enter the same port number you
entered in the
SIP Server Port
field.
SIP Service
Domain
Enter the SIP service domain name. In the full SIP URI, this is the part
after the @ symbol.
You can use up to 127 printable ASCII Extended
set characters.
VoIP IOP Flags - Select VoIP inter-operability settings.
Replace dial digit '#' to '%23' in SIP messages
Remove ':5060' and 'transport=udp' from request-uri in SIP messages
Remove the 'Route' header in SIP messages
Don't send re-Invite to the remote party when there are multiple codecs answered in the SDP
Remove the 'Authorization' header in SIP ACK message
Using Bidirection RTP for SIP 138
RFC Support
PRACK (RFC
3262)
RFC 3262 defines a mechanism to provide reliable transmission of SIP
provisional response messages, which convey information on the
processing progress of the request. This uses the option tag
100rel
and
Page 103 / 155
LTE TDD B2268H
User Guide
13 VoIP
Issue 01 (2014-01-15)
Copyright © Huawei Technologies Co., Ltd.
96
LABEL
DESCRIPTION
the Provisional Response ACKnowledgement (PRACK) method.
Select
Supported
or
Required
to have the LTE Device include a SIP
Require/Supported header field with the option tag 100rel in all INVITE
requests. When the LTE Device receives a SIP response message
indicating that the phone it called is ringing, the LTE Device sends a
PRACK message to have both sides confirm the message is received.
If you select
Supported
, the peer device supports the option tag 100rel to
send provisional responses reliably.
If you select
Required
, the peer device requires the option tag 100rel to
send provisional responses reliably.
Select
Disabled
to turn off this function.
DNS SRV
Enabled (RFC
3263)
Select this option to have the LTE Device use DNS procedures to resolve
the SIP domain and find the SIP server's IP address, port number and
supported transport protocol(s).
The LTE Device first uses DNS Name Authority Pointer (NAPTR)
records to determine the transport protocols supported by the SIP server.
It then performs DNS Service (SRV) query to determine the port number
for the protocol. The LTE Device resolves the SIP server's IP address by
a standard DNS address record lookup.
Session Timer
(RFC 4028)
Select this to have the LTE Device support RFC 4028.
This makes sure that SIP sessions do not hang and the SIP line can
always be available for use.
RTP Port Range
Start Port
End Port
Enter the listening port number(s) for RTP traffic, if your VoIP service
provider gave you this information. Otherwise, keep the default values.
To enter one port number, enter the port number in the
Start Port
and
End Port
fields.
To enter a range of ports,
Enter the port number at the beginning of the range in the
Start Port
field.
Enter the port number at the end of the range in the
End Port
field.
DTMF Mode
DTMF Mode
Control how the LTE Device handles the tones that your telephone
makes when you push its buttons. You should use the same mode your
VoIP service provider uses.
RFC2833
- send the DTMF tones in RTP packets.
PCM
- send the DTMF tones in the voice data stream. This method
works best when you are using a codec that does not use compression
(like G.711). Codecs that use compression (like G.729 and G.726) can
distort the tones.
SIP INFO
- send the DTMF tones in SIP messages.
Transport Type
Transport Type
Select the transport layer protocol
UDP
or
TCP
(usually UDP) used for
Page 104 / 155
LTE TDD B2268H
User Guide
13 VoIP
Issue 01 (2014-01-15)
Copyright © Huawei Technologies Co., Ltd.
97
LABEL
DESCRIPTION
SIP.
FAX Option
This field controls how the LTE Device handles fax messages.
G711 Fax
Passthrough
Select this if the LTE Device should use G.711 to send fax messages. The
peer devices must also use G.711.
T38 Fax Relay
Select this if the LTE Device should send fax messages as UDP or
TCP/IP packets through IP networks. This provides better quality, but it
may have inter-operability problems. The peer devices must also use
T.38.
Outbound Proxy
Enable
Select this if your VoIP service provider has a SIP outbound server to
handle voice calls. This allows the LTE Device to work with any type of
NAT router and eliminates the need for STUN.
Server Address
Enter the IP address or domain name of the SIP outbound proxy server.
Server Port
Enter the SIP outbound proxy server's listening port, if your VoIP service
provider gave you one. Otherwise, keep the default value.
QoS Tag
SIP TOS
Priority Setting
Enter the DSCP (DiffServ Code Point) number for SIP message
transmissions. The LTE Device creates Class of Service (CoS) priority
tags with this number to SIP traffic that it transmits.
RTP TOS
Priority Setting
Enter the DSCP (DiffServ Code Point) number for RTP voice
transmissions. The LTE Device creates Class of Service (CoS) priority
tags with this number to RTP traffic that it transmits.
Timer Setting
Expiration
Duration
Enter the number of seconds your SIP account is registered with the SIP
register server before it is deleted. The LTE Device automatically tries to
re-register your SIP account when one-half of this time has passed. (The
SIP register server might have a different expiration.)
Register Re-
send timer
Enter the number of seconds the LTE Device waits before it tries again to
register the SIP account, if the first try failed or if there is no response.
Session Expires
Enter the number of seconds the LTE Device lets a SIP session remain
idle (without traffic) before it automatically disconnects the session.
Min-SE
Enter the minimum number of seconds the LTE Device lets a SIP session
remain idle (without traffic) before it automatically disconnects the
session. When two SIP devices start a SIP session, they must agree on an
expiration time for idle sessions. This field is the shortest expiration time
that the LTE Device accepts.
Dialing Interval Selection
Dialing Interval
Selection
Enter the number of seconds the LTE Device should wait after you stop
dialing numbers before it makes the phone call. The value depends on
how quickly you dial phone numbers.
Page 105 / 155
LTE TDD B2268H
User Guide
13 VoIP
Issue 01 (2014-01-15)
Copyright © Huawei Technologies Co., Ltd.
98
LABEL
DESCRIPTION
Phone Key Config
Use this section to customize the phone keypad combinations you use to access certain
features on the LTE Device.
Caller Display
Call
This code is used to display the caller ID for outgoing calls.
Caller Hidden
Call
This code is used to hide the caller ID for outgoing calls.
One Shot Caller
Display Call
This code is used to display the caller ID only for the phone call you are
going to make.
One Shot Caller
Hidden Call
This code is used to hide the caller ID only for the phone call you are
going to make.
Call Waiting
Enable
This code is used to turn the Call Waiting feature on. With call waiting,
you hear a special beep notifying another incoming call while you are
answering a call. It allows you to place the first incoming call on hold and
answer the second call so that you won't miss any important calls.
Call Waiting
Disable
This code is used to turn the Call Waiting feature off.
One Shot Call
Waiting Enable
This code is used to enable call waiting only for the phone call you are
going to make. See the description for the Call Waiting Enable field for
more information.
One Shot Call
Waiting Disable
This code is used to disable one shot call waiting.
Call Transfer
This code is used to enable call transfer that allows you to transfer an
incoming call (that you have answered) to another phone.
Unconditional
Call Forward
Enable
This code is used to enable unconditional call forwarding. Incoming calls
are always forwarded to a specified number without any condition.
Unconditional
Call Forward
Disable
This code is used to disable unconditional call forwarding.
No Answer Call
Forward Enable
This code is used to enable call forwarding when there is no answer at a
SIP number.
No Answer Call
Forward Disable
This code is used to disable call forwarding when there is no answer at a
SIP number.
Call Forward
When Busy
Enable
This code is used to enable call forwarding when the phone is busy.
Call Forward
When Busy
Disable
This code is used to disable call forwarding when the phone is busy.
Do Not Disturb
This code is used to turn the Do Not Disturb feature on. This has the LTE

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