Tinkle do not support calling emergency services from a device and would always advise that you use a mobile for any emergency calls where possible. If the Tinkle system is the only available system you can use, if you need to dial an emergency number from the app, you need to ensure there is a 0 in front of the number. IE 0101, 0111, 0999.
The characteristic of our technology enables users to operate from any location with internet access, utilizing a range of Non-Geographical and Geographical numbers. However, these capabilities can complicate the verification of the caller's location and as such we do not recommend making emergency calls from the VoIP system.
For more information please see reference the link below:
VoIP and 999 calls – The full story | VIP VoIP