NethVoice CTI: Restore configuration of **Line Keys** on phone **Expansion Modules**

[andrea-marchionni]

📝 Summary

This feature was previously possible on the previous version.

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💡 Motivation

Expansion modules are essential in environments such as reception desks, operator stations, and call centers, where users manage multiple extensions and BLF keys.
The inability to configure expansion module buttons as Line Keys significantly reduces usability and productivity.

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🔧 Requested Functionality

• Allow configuration of expansion modules within the CTI / provisioning interface.
• Enable Line Key type selection (BLF, Pickup, Speed Dial, Call Monitoring) for expansion keys.
• Display the total number of keys available (including expansion modules) in the UI.
• Ensure provisioning correctly applies Line Key settings to the phone and its expansion module(s).
• Guarantee real-time BLF and line state updates on expansion keys (just like the main phone keys).
• Update official documentation to confirm support and include examples.