Business Problem:
Sub-accounts created through respond.io cannot activate Telnyx call forwarding due to a technical limitation on the Telnyx platform. Attempting to enable it produces an error.
Businesses in regions where Telnyx doesn't support number portability (e.g., Saudi Arabia) have no way to port their existing carrier number to Telnyx. Their only viable path is to forward calls from their original carrier (e.g., STC) to a Telnyx DID, then route them into respond.io via SIP. This flow currently does not work because of the same sub-account restriction.
Desired Outcome:
Enable Telnyx sub-accounts to support call forwarding configurations, covering both outbound forwarding (respond.io → external number) and inbound relay (external carrier → Telnyx DID → respond.io).