Are any additional dialing or space bar requirements permissible for 911 systems?
No. Additional dialing or space bar requirements are not permitted. Operators should be trained to recognize incoming TDD signals and respond appropriately. In addition, they also must be trained to recognize that “silent” calls may be TDD or computer modem calls and to respond appropriately to such calls as well. II-7.3200 911 lines. Where a 911telephone line is available, a separate seven-digit telephone line must not be substituted as the sole means for non-voice users to access 911 services. A public entity may, however, provide a separate seven-digit line for use exclusively by non-voice calls in addition to providing direct access for such calls to the 911 line. Where such a separate line is provided, callers using TDD´s or computer modems would have the option of calling either 911 or the seven-digit number. II-7.3300 Seven-digit lines. Where a 911 line is not available and the public entity provides emergency services through a seven- digit number, it may provide two separate l
