Unable to query communications/calls/{id}

[adf_noob]

I am using the following code to query the Graph API to retrieve a Team's call information. However, I constantly get the error (pasted below). I am not sure what I am missing. Any help is much appreciated.

Code:

// The client credentials flow requires that you request the
// /.default scope, and preconfigure your permissions on the
// app registration in Azure. An administrator must grant consent
// to those permissions beforehand.
string[] scopes = new[] { "https://graph.microsoft.com/.default" };

// Multi-tenant apps can use "common",
// single-tenant apps must use the tenant ID from the Azure portal
//string tenantId = "common";
string tenantId = AzureDetails.TenantID;

// Values from app registration
string clientId = AzureDetails.ClientID;
string clientSecret = AzureDetails.ClientSecret;

// using Azure.Identity;
TokenCredentialOptions options = new()
{
    AuthorityHost = AzureAuthorityHosts.AzurePublicCloud
};

// https://docs.microsoft.com/dotnet/api/azure.identity.clientsecretcredential
ClientSecretCredential clientSecretCredential = new(tenantId, clientId, clientSecret, options);

GraphServiceClient graphClient = new(clientSecretCredential, scopes);

call = await graphClient.Communications.Calls[id].Request().GetAsync();

Exception:

Code: UnknownError
Inner error:
	AdditionalData:
	date: 2022-08-30T17:11:46
	request-id: b00e1f14-82d7-459b-bbdc-ae13ae04cdb2
	client-request-id: b00e1f14-82d7-459b-bbdc-ae13ae04cdb2
ClientRequestId: b00e1f14-82d7-459b-bbdc-ae13ae04cdb2

Thanks,

Puneeth