FAQs

CommPeak SIP Trunking FAQs

In this section, you’ll find answers to the questions about using CommPeak VoIP Service our customers ask us the most.

How Are Calls Handled and Optimized with CallBoost?

CallBoost is a real-time call routing engine that enhances call success rates by automatically rerouting calls based on previous outcomes

Read more about how calls are handled and optimized with CallBoost

How Should I Set Up a VoIP Network With Dual ISPs?

The best practice is to allocate one ISP for VoIP traffic and another for data traffic.

Read more about setting up a VoIP network with dual ISPs

Do I Have to Manage Load Balancing or Failover Across Multiple IP Addresses?

You can try using multiple POP s for higher redundancy if the entire local network goes down.

Read more about managing load balancing or failover

Do You Support DNS SRV Record?

CommPeak provides DNS A records to point to our SIP proxies.

Read more about DNS SRV record support

Do You Support Any SIP TLS SRTP Encryption Methods?

CommPeak supports encrypted SIP signaling over TLS and encrypted media transmission via SRTP.

Read more about supported SIP TLS SRTP encryption methods

How Can VPN Affect VoIP Calls?

The use of a VPN can impact VoIP calls in several ways.

Read more about how VPN affects VoIP calls

Do You Support IPSec Integration With Customers?

At the moment, we do not support the establishment of IPSec with customers but you can request this support.

Read more about IPSec integration with customers

What Codec Should I Use?

For the best sound quality, all calls in CommPeak Dialer, CommPeak Cloud PBX, or CommPeak Softphone are default switched to G.722 HD wideband audio codec.

Read more about recommended codecs

What Are CommPeak IP Addresses?

CommPeak has a large network of globally distributed PoPs (SIP signaling points of presence). For the full list of CommPeak's current IP ranges check below.

Read more about CommPeak IP addresses

Where Is My Traffic Sent to?

Your media is routed directly to the carriers' closest demarcation point.

Read more about traffic routing

How Can I Know Which Exactly Caller ID Rule Was Triggered?

You can generate a Call Records report (CDRs) to check the caller ID.

Read more about identifying triggered Caller ID rules

What Are CommPeak SIP Signaling Addresses?

For the full list of CommPeak's current IP ranges check below.

Read more about CommPeak SIP signaling addresses

What is E.164?

E .164 is the global standard for telephone numbering, ensuring every device within the PSTN possesses a globally unique number.

Read more about the E.164 global standard

What Are Allowed Ports for CommPeak VoIP Services?

You need to define your firewall or network settings to allow specific ports to ensure seamless connectivity for VoIP Services.

Read more about allowed ports for VoIP services

What Should I Do if Port 5061 is Blocked?

If you're experiencing blocked access, you can connect securely using TLS transport over specific ports.

Read more about what to do if Port 5061 is blocked

What are STUN and TURN in SIP?

STUN and TURN are two essential protocols that ensure your SIP softphone (like CommPeak’s Softphone) can successfully make and receive calls when your device is behind a router or firewall.

Read more about STUN and TURN in SIP

Important Note: Using 3rd-Party Applications

Manual enabling SRTP (Secure Real-Time Transport Protocol) is required when using TLS for SIP transport.

Read more about using 3rd-party applications

Following these best practices ensures high-quality, secure VoIP calls while minimizing network disruptions.