An Azure service that provides access to OpenAI’s GPT-3 models with enterprise capabilities.
Error 715-123420 with the “unusual activity” message requires an authorized Microsoft team to review and release the deployment restriction; changing the gpt-realtime deployment configuration will not clear it.
Your selected combination is supported: gpt-realtime version 2025-08-28 is available for global deployments in East US 2, so the stated model, version, region, and Global Standard deployment type are valid.^1^
Closely matched cases identify 715-123420 as a fraud-protection signal requiring review by the appropriate internal team. In resolved cases, Microsoft Support created a collaboration with the security team and the temporary backend block was remediated.^2^ Another Foundry case reports that Microsoft completed adjustments and instructed the customer to retry after one to two hours.^3^
Required escalation information
A Microsoft Q&A moderator or support engineer must initiate any private exchange; ordinary community respondents cannot open a private message or remove an account-level restriction. When contacted privately, provide:
- Subscription ID and tenant ID
- Azure OpenAI resource name and resource ID
- Region: East US 2
- Model/version: gpt-realtime / 2025-08-28
- Deployment type and capacity: Global Standard / 1
- Exact failure time: 22 October 2026, 02:11 UTC
- Activity Log correlation ID and complete error text
- Confirmation that resource creation and the GPT-4o-mini deployment succeeded
- Confirmation that only this deployment failure has currently been observed
Do not post subscription, tenant, resource, correlation, or account identifiers publicly. Azure’s support procedure similarly advises against placing confidential information in public-facing details and requires selecting the affected subscription for account-specific investigation.^4^
Avoid repeatedly deleting and recreating resources while awaiting review. A closely matched Basic-plan case states that retries, region changes, or resource recreation do not release this type of block and records escalation to Microsoft for internal review.^5^
If no moderator escalation is offered
Technical support requires a qualifying support plan. From the affected Azure OpenAI resource, try:
- Azure portal → Azure OpenAI resource → Support + Troubleshooting.
- Enter error 715-123420 and select the affected resource.
- Run any offered diagnostic, then select Create a support request.
- Select the affected subscription and the closest Azure OpenAI / model deployment technical category.
Creating a ticket requires Owner, Contributor, Support Request Contributor, or a custom role containing Microsoft.Support/* at subscription scope.^4^
If the Basic plan still prevents submission:
- Ask the tenant administrator or support-agreement owner whether the subscription can be linked to an existing support entitlement.^6^
- If no entitlement exists, go to Azure portal → Help + support → Choose the right support plan to purchase or upgrade a plan.^7^
This is a technical, account-specific restriction, so Azure’s unlimited subscription-management support does not replace the required technical review.^4^
References
- Use the GPT Realtime API via WebSockets (ai-foundry-portal)
- 715-123420: An error occurred. Please reach out to support for additional assistance. - Microsoft Q&A
- Azure AI Foundry deployment/update failing with error 715-123420. - Microsoft Q&A
- Create an Azure support request
- Model Deployment error: 715-123420 - Microsoft Q&A
- Microsoft Cloud Portals: Self-Help When a Support Request Cannot Be Opened
- Create Azure subscriptions programmatically