ZyXEL Communications MAX-306, User Manual, Page: 159 / 405

Chapter 12 The Service Configuration Screens
User’s Guide
159
12.4 Technical Reference
The following section contains additional technical information about the WiMAX
Device features described in this chapter.
12.4.1 SIP Call Progression
The following figure displays the basic steps in the setup and tear down of a SIP
call. A calls B.
1
A sends a SIP INVITE request to B. This message is an invitation for B to
participate in a SIP telephone call.
2
B sends a response indicating that the telephone is ringing.
3
B sends an OK response after the call is answered.
4
A then sends an ACK message to acknowledge that B has answered the call.
5
Now A and B exchange voice media (talk).
Voice VLAN ID Select this if the WiMAX Device has to be a member of a VLAN to
communicate with the SIP server. Ask your network administrator, if
you are not sure. Enter the VLAN ID provided by your network
administrator in the field on the right. Your LAN and gateway must be
configured to use VLAN tags.
Otherwise, clear this field.
Apply Click to save your changes.
Reset Click to restore your previously saved settings.
Table 59 VOICE > Service Configuration > QoS
LABEL DESCRIPTION
Table 60 SIP Call Progression
A B
1. INVITE
2. Ringing
3. OK
4. ACK
5.Dialogue (voice
traffic)
6. BYE
7. OK