The APN for the Twilio Programmable Wireless SIM is:
No authentication — ie. leave the username and password entries blank — is required for the IoT APN.
The APN for the Twilio Narrowband SIM, provided in partnership with T-Mobile USA, is:
No authentication — ie. leave the username and password entries blank — is required for the NB-IoT APN.
For more information about APNs, please see Twilio APN Configuration.
Commands sent from the Twilio cloud to your SIM will arrive from the reserved phone number:
Similarly, Commands sent from your SIM to the Twilio cloud must be sent to the same number:
For more information about using the REST API Command resource, please see the API documentation.
You may be asked to apply any or all of the following timeout settings. Please use the recommended values.
|Timer Name||Description||Recommended Value|
|Firewall TCP Timer||For mobile-originated communications, this is the amount of time before the network firewalls terminate Transmission Control Protocol (TCP) connections due to inactivity.||1800 seconds|
|Firewall UDP Timer||For mobile-originated communications, this is the amount of time before network firewalls terminate User Datagram Protocol (UDP) connections due to inactivity.||30 seconds|
|Firewall ICMP Timer||This is the amount of time before network firewalls terminate Internet Control Message Protocol (ICMP) due to inactivity.||10 seconds|
|NAT TCP Timer||This is the amount of time before the Network Address Translation (NAT) router releases the address translation for TCP packets due to inactivity.||
1800 seconds for TCP ports 443 and 8080.
300 seconds for all other TCP ports
|NAT UDP Timer||The amount of time before the NAT router releases the address translation for UDP packets due to inactivity.||60 seconds|