I’m planning a political campaign where we need to make approximately 150,000 outbound voice calls (each lasting less than one minute) over a period of 5 hours. We are considering purchasing 490 additional concurrent lines to support this load. We will be using a landline phone number from Vonage. Before proceeding, I’d like to confirm: Is there anything else we need to consider or configure to ensure smooth execution of a campaign of this scale? Are there any limitations, rate limits, or restrictions we should be aware of? Do you recommend any specific best practices or configurations for handling this volume efficiently? Thanks

Before launching a campaign of this scale, coordinate directly with Vonage to confirm they can support 490+ concurrent outbound lines and 150,000 calls in 5 hours, as provider-side limitations may apply. Also, ensure you have proper consent for all recipients and follow FCC/TCPA guidelines to avoid compliance issues. For best results, use Vapi's batch calling API, monitor your caller reputation, and register your numbers for CNAM and STIR/SHAKEN to reduce spam labeling. Sources: - [Vapi Outbound Calling Documentation](https://docs.vapi.ai/calls/outbound-calling) - [Vapi Trusted Calling and Compliance](https://docs.vapi.ai/calls/outbound-calling#trusted-calling-and-caller-id) - [Vapi TCPA Consent Guide](https://docs.vapi.ai/tcpa-consent)

@Vapi Support Bot Thanks! What should be the correct CSV format to run the campaign? I tried uploading a CSV once for a smaller campaign, but none of the phone numbers were recognized. I want to make sure the format is correct this time to avoid any issues.

To ensure your CSV is recognized for a Vapi batch call campaign, use this format:

csv
phone,name
+12345678900,John Doe
+19876543210,Jane Smith

- The phone column must be in E.164 format (e.g., +12345678900). - The name column is required; you can add more columns for dynamic variables if needed. - Save your file as UTF-8 and make sure column names match the variables used in your assistant's script. [Download the example template CSV](https://docs.vapi.ai/assets/batch-sample.csv) for reference. Tip: Double-check for extra spaces or formatting issues in your phone numbers to avoid upload errors. Source: - [Vapi Outbound Calling Documentation](https://docs.vapi.ai/calls/outbound-calling)

Here is a pre-made template that works as is. Edit the numbers and names as you want but keep the first row untouched. https://cdn.discordapp.com/attachments/1380584217968382122/1380743566837420072/batch-sample2.csv?ex=6844fd27&is=6843aba7&hm=29d5aabbc5aa5b2b9aa1625666923e5be6c854d882875a42fe992136be1aaed3&