80206: No Available Proxy

This warning means Proxy could not assign a compatible phone number from your Service's number pool to the participant. Proxy matches numbers by country by default, can require area-code or extended-area-code matching when geoMatchLevel is set, and can also run out of compatible numbers when the same participant already has those numbers in use in other active Sessions.

• Your Service does not have any phone numbers that match the participant's country or the stricter location rules configured by geoMatchLevel.
• The participant is already part of one or more active Sessions and has used all compatible proxy numbers available in the pool. A participant cannot be assigned the same proxy number in concurrent active Sessions.
• Your pool does not contain numbers with the capabilities required for the interaction, such as messaging, voice, or both.

• Add more Twilio phone numbers to the Service so the pool includes numbers that match the participant's country or local area requirements and support the interaction type you need.
• If you do not need strict local matching, update geoMatchLevel to a less restrictive setting so Proxy can choose from a larger set of numbers.
• Close any active Session that no longer needs to stay open so its assigned number can be used again for that participant.
• Set a Session ttl or dateExpiry so unused Sessions expire automatically and numbers return to the pool.
• Size your pool for your expected concurrency. If the same participant may be active in multiple Sessions at the same time, provide enough distinct proxy numbers to cover those overlapping Sessions.

• Phone Number Management
• How many Phone Numbers do I need?
• Proxy Service API reference