European Telecommunication Information (for products fitted with
Marking by the symbol indicates compliance of this equipment to the Radio and Telecom Terminal Equipment Directive 1999/5/EC. Such marking is indicative that this equipment meets or exceeds the following technical standards:
CTR 21 - Attachment requirements for
Although this equipment can use either loop disconnect (pulse) or DTMF (tone) signaling, only the performance of the DTMF signaling is subject to regulatory requirements for correct operation.
It is therefore strongly recommended that the equipment is set to use DTMF signaling
for access to public or private emergency services. DTMF signaling also provides faster call setup.
This equipment has been approved to Council Decision 98/482/EEC - “CTR 21” for
However, due to differences between the individual PSTNs provided in different countries, the approval does not, of itself, give an unconditional assurance of successful operation on every PSTN termination point. In the event of problems, you should contact manufacturer Technical Support.