Applicable Plans: Blossom, Garden, Estate


How to Bring Your Own Carrier into Freshcaller? 

  1. Send us the number(s) which you would like to use in Freshcaller, you can email the relevant details to support@freshcaller.com.  

  2. Once we have the numbers, we will generate SIP domains to identify each number.

  3. Once we have provided you with the SIP domains, you can send the domains to your carrier, this is to ensure that your carrier forwards the calls to the right domains. 

  4. We also require the list of IP addresses that your carrier uses to send calls, so that we can add them to our whitelist .

  5. Ensure that your carrier supports G.711/μ-law codec for sending calls.


LIST OF IPs TO BE WHITELISTED BY YOUR CARRIER:

The following list of IP addresses are required to be whitelisted by your carrier to ensure that the calls go through —


North America Virginia Gateways:

Signalling IPs:

54.172.60.0 to 54.172.60.3


Ports: 5060 (UDP/TCP), 5061 (TLS)


Media IPs:

54.172.60.0/23

34.203.250.0/23

Port Range: 10,000 to 20,000 (UDP)


North America Oregon Gateways:

Signalling IPs:

54.244.51.0 to 54.244.51.3

Ports: 5060 (UDP/TCP), 5061 (TLS)


Media IPs:

54.244.51.0/24

Port Range: 10,000 to 20,000 (UDP)


Europe Ireland Gateways:

Signalling IPs:

54.171.127.192 to 54.171.127.195

Ports: 5060 (UDP/TCP), 5061 (TLS)



Media IPs:

54.171.127.192/26

52.215.127.0/24 

Port Range: 10,000 to 20,000 (UDP)


Europe Frankfurt Gateways:

Signalling IPs:

35.156.191.128 to 35.156.191.131

Ports: 5060 (UDP/TCP), 5061 (TLS)


Media IPs:

35.156.191.128/25 

Port Range: 10,000 to 20,000 (UDP) 


Asia Pacific Tokyo Gateways:

Signalling IPs:

54.65.63.192 to 54.65.63.195

Ports: 5060 (UDP/TCP), 5061 (TLS) 


Media IPs:

54.65.63.192/26

Port Range: 10,000 to 20,000 (UDP)


Asia Pacific Singapore Gateways:

Signalling IPs:

54.169.127.128 to 54.169.127.131

Ports: 5060 (UDP/TCP), 5061 (TLS)


Media IPs:

54.169.127.128/26

Port Range: 10,000 to 20,000 (UDP)


Asia Pacific Sydney Gateways:

Signalling IPs:

54.252.254.64 to 54.252.254.67

Ports: 5060 (UDP/TCP), 5061 (TLS)


Media IPs:

54.252.254.64/26

Port Range: 10,000 to 20,000 (UDP) 


South America Sao Paulo Gateways:

Signalling IPs:

177.71.206.192 to 177.71.206.195

Ports: 5060 (UDP/TCP), 5061 (TLS) 


Media IPs:

177.71.206.192/26

Port Range: 10,000 to 20,000 (UDP)


For more information please refer to — https://www.twilio.com/docs/voice/api/sip-interface#sip-connection-technical-specifications


If you face any further problems, we are always around to help you out. Reach out to us at support@freshcaller.com.