Technical problems

Access problems (tokens), transmission, terminals problems or CHMI support or EAD operational & technical enquiries

For technical problems (use of access tokens, transmission, terminals) which require immediate corrective action

Contact the Customer technical Service desk & Operations (CSO) helpdesk

CHMI support (training team - office hours)

For functional questions about the use of CHMI, contact the Network Operations training team:

EAD operational and technical enquiries (office hours)

  1. Check the EAD FAQ
  2. Contact the EAD Service: Email:

FAQs on Technical Support & token issues