Author: FaxCore Technical Engineering Team (Enterprise Solutions Architecture & Systems Engineering)

Published: October 19, 2026 Updated: October 19, 2026 Verified Architecture

Enterprise & Regulatory Compliance Notice: This documentation is authored and maintained by FaxCore certified engineers for enterprise administrators. For formal regulatory audits (HIPAA, SOX, GDPR, PCI-DSS), verify your configuration with your organization's compliance officer. Read our full Compliance Disclaimers & Terms.

FaxAgent Service Management

The FaxCore FaxAgent (FXC6.FaxAgent) service bridges the core FaxCore application with software Fax over IP (FoIP) middleware stacks (TE-SYSTEMS XCAPI, Enghouse Brooktrout SR140) and cloud hybrid networks (etherFAX).

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Supported Telephony & FoIP Drivers

FaxCore FaxAgent interfaces with industry-standard pure software FoIP middleware drivers and cloud-native transports:

Driver / Telephony Package	Developer / Vendor	Protocols & Transports	Description & Download
TE-SYSTEMS XCAPI	TE-SYSTEMS	SIP (T.38 & G.711 pass-through), H.323	Enterprise software FoIP middleware connecting FaxCore to VoIP PBXs and SIP trunks (Cisco CUCM, Avaya Aura, Mitel, Innovaphone, AudioCodes, Teams SBCs) without physical boards. → Download: XCAPI FoIP Agent
Enghouse Brooktrout SR140	Enghouse Interactive	SIP (T.38 & G.711 pass-through), H.323	Enterprise software-only Fax over IP (FoIP) driver (Boston SDK / SR140) for virtualized environments and SIP network connectivity. → Download: Dialogic Brooktrout Driver
etherFAX	etherFAX LLC	HTTPS / TLS hybrid cloud	Cloud-native FoIP transport providing end-to-end encrypted fax delivery without local telco lines or SIP trunks. • Note: Built directly into FaxCore Evolution eV6 (no external driver installation required).

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Service Registration

Upon installation, FaxCore registers the primary local FaxAgent automatically. Manual registration or re-registration is required only when:

• Deploying a secondary or remote FaxAgent server in a distributed topology.
• Changing the host server name or IP address.
• Performing a major driver upgrade (e.g., Brooktrout SR140 Boston driver or XCAPI updates).
• Adding or modifying FoIP channel allocations and virtual line licenses.

Registration Procedure

1. Open the FaxAgent configuration file located at:

   C:\FaxCore\svc.faxagent\FaxAgent.exe.config
   

2. Locate the <appSettings> section:

   <appSettings>
       <!-- Set to "localhost" if co-located with FaxCore, or specify FQDN / IP if remote -->
       <add key="Server" value="localhost" />
   </appSettings>
   

3. Locate the <applicationSettings> section and verify the Web Services URL:

   <applicationSettings>
       <FaxAgent.Properties.Settings>
           <setting name="FaxAgent_FXWS_wfFaxAgent" serializeAs="String">
               <value>http://localhost:2372/WebServices/wfFaxAgent.asmx</value>
           </setting>
       </FaxAgent.Properties.Settings>
   </applicationSettings>
   

4. Save the file.
5. In the Windows Services Management Console (services.msc), ensure the FXC6.FaxAgent startup type is configured to Automatic and start the service.

Important

IP / Hostname Changes If the IP address or hostname of the FaxAgent server changes, the agent must be removed from Network Settings > Fax Agent in the Admin Panel and re-registered. Outbound routing rules referencing the old agent ID must also be updated.

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Service Re-Registration

If channel allocations or virtual port configurations change, reset the agent registration:

1. Navigate to Network Settings > Fax Agent > Configuration.
2. Select the target agent from the dropdown and click Delete.
3. Stop the FXC6.FaxAgent Windows service on that server.
4. Edit FaxAgent.exe.config and clear the AgentID value:

   <add key="AgentID" value="" />
   

5. Save the configuration and start the FXC6.FaxAgent service.
6. The service contacts the core server, requests a fresh identifier, and populates the new channels into the agent pool automatically.

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FaxAgent Regional Configuration

In the Admin Panel under Network Settings > Fax Agent > Configuration:

• Fax Agent Label: Descriptive identifier (e.g., Denver-Datacenter-Agent).
• Country Code & Area Code: Telephony location where the FoIP lines terminate.
• Pool Outgoing Faxes to Same Destination: When enabled, queues outbound faxes directed to the same phone number through the same channel sequentially. This prevents multiple lines from calling the same number simultaneously, eliminating "Line Busy" conflicts.