Method and apparatus for establishing TDD/TTY service over vocoded channels

A noticing apparatus used in a telecommunications system used to transmit a low activity communication signal, comprising:

• a device port, said device port configured to receive a low activity communication device attachment, said port interfacing with said attachment to communicatively connect a low activity communication device to said telecommunications system;
• and
• a sensor integral to said device port, said sensor detecting that said low activity communication device has been connected to said telecommunications system, said detection causing said telecommunications system to be noticed that said low activity communication signal will be received, said noticing resulting in vocoders used to transmit said low activity communication signal being locked into a full rate.

A noticing apparatus used in a telecommunications system for transmitting a low activity communication, comprising:

• a port means for interfacing with a low activity communication device attachment to communicatively connect a low activity communication device to said telecommunications system, said port means configured to receive said low activity communication device attachment;
• and
• a sensor means coupled to said port means for detecting when a low activity communication device has been communicatively connected to said telecommunications system and for causing said telecommunications system to be noticed that said low activity communication will be received, wherein said notice to said telecommunications system causes any vocoder involved in transmitting said low activity communication to automatically lock into a full rate, and wherein said telecommunications system adjusts as necessary to minimize any target frame error rate experienced during transmission.