Table 61 VoIP > SIP > SIP Settings > Advanced
LABEL | DESCRIPTION |
|
|
Keep Alive Interval | Enter how often (in seconds) the ZyXEL Device should send SIP notify messages |
| to the SIP server. |
MWI (Message |
|
Waiting Indication) |
|
Enable | Select this if you want to hear a waiting (beeping) dial tone on your phone when |
| you have at least one voice message. Your VoIP service provider must support this |
| feature. |
Expiration Time | Keep the default value, unless your VoIP service provider tells you to change it. |
| Enter the number of seconds the SIP server should provide the message waiting |
| service each time the ZyXEL Device subscribes to the service. Before this time |
| passes, the ZyXEL Device automatically subscribes again. |
Fax Option | This field controls how the ZyXEL Device handles fax messages. |
|
|
G.711 Fax | Select this if the ZyXEL Device should use G.711 to send fax messages. The peer |
Passthrough | devices must also use G.711. |
T.38 Fax Relay | Select this if the ZyXEL 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. |
Call Forward |
|
|
|
Call Forward Table | Select which call forwarding table you want the ZyXEL Device to use for incoming |
| calls. You set up these tables in VoIP > Phone Book > Incoming Call Policy. |
Caller Ringing |
|
|
|
Enable | Check this box if you want people to hear a recording when they call you. |
|
|
On Hold |
|
|
|
Enable | Check this box if you want people to hear a recording when you put them on hold. |
|
|
<Back | Click this to return to the SIP Settings screen without saving your changes. |
|
|
Apply | Click this to save your changes and to apply them to the ZyXEL Device. |
|
|
Cancel | Click this to set every field in this screen to its |
|
|
Use this screen to maintain ToS and VLAN settings for the ZyXEL Device. To access this screen, click VoIP > SIP > QoS.
152 | Chapter 9 SIP |