I need to be able to identify the source VAPI account when performing an outbound call. I can do this by creating a custom SIP domain, however I have multiple gateways

Hi Bucky101, Vapi supports integrations with various SIP trunk configurations, but SIP SRV records are not typically used directly in the provided documentation. Instead, you can identify the source Vapi account for outbound calls by creating a SIP trunk credential that includes specific gateway details for each account you manage. To set this up, follow these steps: 1. **Obtain Provider Details**: Gather the SIP server address and authentication credentials for each gateway. 2. **Create SIP Trunk Credential**: Use the Vapi API to create a credential for each gateway with your provider’s details. 3. **Associate Phone Numbers**: Link each phone number to the respective SIP trunk credentials. For creating a custom SIP trunk with multiple gateways, refer to the [SIP Trunking documentation](https://docs.vapi.ai/advanced/sip/sip-trunk). You can specify different gateways and configure them individually in your setup. This approach enables you to manage multiple gateways without relying on SIP SRV, and keeps your outbound call routing organized per VAPI account.