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Table 47 VOICE > Service Configuration > QoS
LABEL
Voice VLAN ID
Apply
Reset
11.4 Technical Reference
The following section contains additional technical information about the WiMAX Modem
features described in this chapter.
11.4.1 SIP Call Progression
The following figure displays the basic steps in the setup and tear down of a SIP call. A calls
B.
Table 48 SIP Call Progression
A
1. INVITE
4. ACK
6. BYE
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).
6 After talking, A hangs up and sends a BYE request.
7 B replies with an OK response confirming receipt of the BYE request and the call is
terminated.
User's Guide
DESCRIPTION
Select this if the WiMAX Modem 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.
Click to save your changes.
Click to restore your previously saved settings.
5.Dialogue (voice traffic)
Chapter 11 The Service Configuration Screens
B
2. Ringing
3. OK
7. OK
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Troubleshooting
