Label
Description
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,
l
Enter the port number at the beginning of the range in the
Start Port
field.
l
Enter the port number at the end of the range in the
End
Port
field.
NOTE
The LTE Device uses the RTP ports starting from 50000 by default.
NOTE
Make sure your IADs'or SIP phones' RTP ports do NOT start from
50000 to avoid port conflict issues. For example, change them to 10000
or 30000 if they conflict with the LTE Device's RTP ports.
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
This read-only field displays the transport layer protocol the
LTE Device uses for SIP (UDP).
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
LTE CPE B2368
User Guide
15 VoIP
Issue 03 (2019-01-31)
Copyright © Huawei Technologies Co., Ltd.
115