Chapter 15 VoIP
B222s User’s Guide
127
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
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 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 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).
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.
Table 49
VoIP > SIP > SIP Service Provider (continued)
LABEL
DESCRIPTION
Summary of Contents for B222s
Page 4: ...Contents Overview B222s User s Guide 4 ...
Page 12: ...Table of Contents B222s User s Guide 12 ...
Page 13: ...13 PART I User s Guide ...
Page 14: ...14 ...
Page 28: ...28 ...
Page 78: ...Chapter 7 Routing B222s User s Guide 78 ...
Page 82: ...Chapter 8 DNS Route B222s User s Guide 82 ...
Page 102: ...Chapter 10 Network Address Translation NAT B222s User s Guide 102 ...
Page 114: ...Chapter 12 Firewall B222s User s Guide 114 ...
Page 120: ...Chapter 14 Parental Control B222s User s Guide 120 ...
Page 125: ...Chapter 15 VoIP B222s User s Guide 125 ...
Page 144: ...Chapter 15 VoIP B222s User s Guide 144 ...
Page 154: ...Chapter 17 Traffic Status B222s User s Guide 154 ...
Page 156: ...Chapter 18 User Account B222s User s Guide 156 ...
Page 170: ...Chapter 24 Backup Restore B222s User s Guide 170 ...
Page 172: ...Chapter 25 Diagnostic B222s User s Guide 172 ...
Page 218: ...Appendix B Setting Up Your Computer s IP Address B222s User s Guide 218 ...
Page 228: ...Appendix C Pop up Windows JavaScript and Java Permissions B222s User s Guide 228 ...
Page 252: ...Appendix E Common Services B222s User s Guide 252 ...