NethVoice: Allow alphanumeric Outbound CID format in multi-extension management interface

[viktec]

When the Outbound CID is set directly inside the extension settings, the system correctly accepts and applies the full alphanumeric format (e.g. "3333" <0721405516>), and the same value is shown correctly in the multi-extension management view.

However, if the same Outbound CID is entered manually from the multi-extension management interface, the system returns a validation error related to the “root number”, indicating that the format does not match the expected pattern.
At the moment, the interface only accepts plain numeric values, preventing the use of valid formats required by some providers.

This limitation forces administrators to configure each extension manually in FreePBX, making bulk management impossible.

Additionally, the ability to group users and apply rules in bulk would greatly speed up the workflow, especially for environments where groups correspond to queues.

Some providers (e.g., those supporting GNR ranges) accept outbound CID values in the format "number" <username>, and this format works correctly when applied directly inside FreePBX.
Therefore, the multi-extension interface should also support it.

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Steps to reproduce

• Open Multi Extension Management.
• Attempt to edit the Outbound CID of one or more extensions.
• Enter a valid alphanumeric CID such as "3333" <0721405516>.
• Submit.

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Expected behavior

• The interface should accept valid alphanumeric Outbound CID formats (matching FreePBX behavior).
• The value should be applied successfully to multiple extensions at once.

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Actual behavior

• The interface rejects the value and returns a validation error about the “root number” or invalid format.
• Bulk configuration is impossible; each extension must be edited manually inside FreePBX.

[edospadoni]

Testing release:

• https://github.com/nethesis/ns8-nethvoice/releases/tag/1.5.4-testing.21