Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series IP Phones
352
Parameter
Permitted Values
Default
0
-Disabled
1
-Enabled
Note
: If you want to receive an IP call, make sure the value of the parameter “sip.trust_ctrl” is
set to 0 (Disabled).
Web User Interface:
Features->General Information->Allow IP Call
Phone User Interface:
None
To configure allow IP call feature via web user interface:
1.
Click on
Features
->
General Information
.
2.
Select the desired value from the pull-down list of
Allow IP Call
.
3.
Click
Confirm
to accept the change.
Accept SIP Trust Server Only
Accept SIP trust server only enables the IP phones to only accept the SIP message from your SIP
server and outbound proxy server. It can prevent the phone receiving ghost calls from random
numbers like 100, 1000, and so on. To stop this from happening, you also need to disable allow
IP call feature. For more information on allow IP call, refer to
on page
Procedure
Accept SIP trust server only can be configured using the following methods.
Central Provisioning
<y0000000000xx>.cfg
Configure accept SIP trust server only.
Summary of Contents for SIP-T19 E2 T4 Series
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Page 532: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 510 ...
Page 734: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 712 ...
Page 814: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 792 ...
Page 850: ...Administrator s Guide for SIP T2 Series T19 P E2 T4 Series T5 Series IP Phones 828 ...
Page 887: ...Troubleshooting 865 The phone begins rebooting Any reboot of the phone may take a few minutes ...