UCM6100 Series User Manual
Version 1.0.18.13
VOIP TRUNKS
VoIP Trunk Configuration
VoIP trunks can be configured in UCM6100 under Web GUI→Extension/Trunk→VoIP Trunks. Once created,
the VoIP trunks will be listed with Provider Name, Type, Hostname/IP, Username and Options to edit/detect the
trunk.
• Click on "Create New SIP Trunk" or "Create New IAX Trunk" to add a new VoIP trunk.
• Click on to configure detailed parameters for the VoIP trunk.
• Click on to configure Direct Outward Dialing (DOD) for the SIP Trunk.
• Click on to start LDAP Sync.
• Click on to delete the VoIP trunk.
For VoIP trunk example, please refer to the document in the following link:
http://www.grandstream.com/sites/default/files/Resources/ucm6xxx_sip_trunk_guide.pdf
The VoIP trunk options are listed in the table below.
Table 53: Create New SIP Trunk
Select the VoIP trunk type.
• Peer SIP Trunk
• Register SIP Trunk
Configure a unique label (up to 64 character) to identify this trunk when listed in
outbound rules, inbound rules etc.
Configure the IP address or URL for the VoIP provider’s server of the trunk.
Keep the CID from the inbound call when dialing out. This setting will override
“Keep Trunk CID” option. Please make sure that the peer PBX at the other side
supports to match user entry using “username” field from authentication line.
If enabled, the trunk CID will not be overridden by extension’s CID when the
extension has CID configured. The default setting is “No”.
Turn on this setting when the PBX is using public IP and communicating with
devices behind NAT. If there is one-way audio issue, usually it is related to NAT
configuration or SIP/RTP port support on the firewall.
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