Huawei B222s User Manual page 127

Table 49 VoIP > SIP > SIP Service Provider (continued)
LABEL
Start Port
End Port
DTMF Mode
Transport Type
Transport Type
FAX Option
G711 Fax
Passthrough
T38 Fax Relay
Outbound Proxy
Enable
Server Address
Server Port
QoS Tag
SIP TOS Priority
Setting
RTP TOS Priority
Setting
Timer Setting
Expiration
Duration
Register Re-send
timer
Session Expires
B222s User's Guide
DESCRIPTION
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.
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.
Select the transport layer protocol UDP or TCP (usually UDP) used for SIP.
This field controls how the LTE Device handles fax messages.
Select this if the LTE Device should use G.711 to send fax messages. The peer devices
must also use G.711.
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.
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 or a SIP ALG. Turn off any SIP ALG on a NAT router in front of the LTE Device to
keep it from re-translating the IP address (since this is already handled by the outbound
proxy server).
Enter the IP address or domain name of the SIP outbound proxy server.
Enter the SIP outbound proxy server's listening port, if your VoIP service provider gave
you one. Otherwise, keep the default value.
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.
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.
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.)
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.
Enter the number of seconds the LTE Device lets a SIP session remain idle (without traffic)
before it automatically disconnects the session.
Chapter 15 VoIP
127