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3Com VoIP setup - PBX and / or clients connecting over VPN
03/26/2020 
40 People found this article helpful
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Description
3Com VoIP setup - PBX and / or clients connecting over VPN
Resolution
To configure "3Com VoIP setup - PBX and / or clients connecting over VPN" ensure that the following settings are enabled on the SonicWall Appliance.
Go to Firewall > Multicast
Under Multicast Snooping section: Select Enable Multicast
Under Multicast Policies section: In the Drop down list Select Enable reception of all multicast addresses
Click Apply button on top.
Go to Network > Interfaces
Edit the LAN Interface settings by click on the Configure icon. The Edit Interface window is displayed.
Click on Advanced Tab, Select Enable Multicast Support
Click Apply
Go to VPN > Settings
Edit the VPN policy, go to Advanced tab and select Enable Multicast Support
Click Apply.
Go to VPN > Advanced
Select Enable Fragmented Packet Handling
Uncheck Ignore DF (Don't Fragment) Bit
Click Apply
Go to VoIP > Settings
Uncheck Enable H.323 Transformations,
Note: This required a reboot
Reboot the SonicWall Appliance
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Categories
- Firewalls > TZ Series
- Firewalls > SonicWall SuperMassive E10000 Series
- Firewalls > SonicWall SuperMassive 9000 Series
- Firewalls > SonicWall NSA Series
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