Codec Tieline Gateway User Manual page 163

23.17.3 Configure SIP Allow and Block Lists
The SIP Filter Lists panel allows filtering of SIP URIs and User Agents to provide greater security
for your codec connections. For example, add trusted network codecs to the URI Allow List in this
panel and only codecs using these SIP URIs will be able to connect. This is like saying, "if you have
the key you can open the door" and is perhaps the easiest way to filter outside access to your
codec's "front door".
It is also possible to add SIP URIs to the URI Block List and add user agents to the User Agent
Block List to deny them access to the codec. These block lists also filter unwanted traffic and
increase the likelihood of rejecting unwanted traffic. Note: If an incoming SIP caller is not on the URI
Allow List it will be scanned using the URI Block List. If there is no match it will be scanned using
the User Agent Block List. A connection will be established if there is no match on either Block
List.
Important Note: To only allow a predefined list of codecs to connect, add them to the URI
Allow List and add a wildcard (asterisk) * to the URI Block List: all incoming calls will be
blocked except for codecs in the Allow List.
Filter URIs and User Agents
1. Open the HTML5 Toolbox Web-GUI and click Transport in the Menu Bar, then click SIP Filter
Lists to launch the SIP Filter Lists panel.
2. Click the Plus symbol
a new item to the list.
3. Enter the new item in the text box, click to select the check-box and then click Save to store
the new setting.
4. Click the Undo symbol
position of allow list and block list items.
Important Note: Some codec manufacturers allow calls based on 'User Agent'
identification. It may be necessary to enter a Tieline codec user agent into a non-Tieline
codec to connect to a Tieline SIP-enabled codec.
· From firmware v2.16.xx the user agent in the codec is configured as "Tieline <Product
Name> <Firmware Version>". E.g. Tieline Bridge-IT v2.18.68
· User agent for Report-IT SIP connections: Tieline Report-IT EE (3.5.6_2894). Note: In this
example "3.5.6" is the Report-IT version number and "2894" is the build number.
· In Tieline G3 codecs the user agent is configured as "Tieline <ProductName> <Serial
Number>". E.g. Tieline TLR350 8972. The model numbers for Tieline G3 codecs are as
follows:
© Tieline Research Pty. Ltd. 2021
Gateway and Gateway 4 Manual v1.2
for URI Allow List, URI Block List or User Agent Block List to add
to undo editing and click and drag the List symbol
163
to shift the