Hello,
Zendesk currently allows IVR routing only to external phone numbers. This prevents customers from using IVR to route calls between phone lines that exist within the same Zendesk account.
This limitation reduces flexibility in multi‑line setups and prevents consolidated call‑flows within a single platform.
Suggestion for improvement:
Allowing IVR routing to other Zendesk‑managed phone lines within the same instance, similar to how external number routing works today.

