FAQFrequently asked questions about CommPeak VoIP Service Suggest EditsIn this section, you’ll find answers to the questions about using CommPeak VoIP Service our customers ask us the most. Following these best practices ensures high-quality, secure VoIP calls while minimizing network disruptions. How Are Calls Handled and Optimized with CallBoost? How Should I Set Up a VoIP Network With Dual ISPs? Do I Have to Manage Load Balancing or Failover Across Multiple IP Addresses? Do You Support DNS SRV Record? Do You Support Any SIP TLS SRTP Encryption Methods? How Can VPN Affect VoIP Calls? Do You Support IPSec Integration With Customers? What Codec Should I Use? What Are CommPeak IP Addresses? Where Is My Traffic Sent to? How Can I Know Which Exactly Caller ID Rule Was Triggered? What Are CommPeak SIP Signaling Addresses? What is E.164? Updated 9 days ago