Page 562 of 906 NT8D09 Analog Message Waiting Line card553-3001-211 Standard 3.00 August 2005the system for port-to-port loss. See Software Input/Output: Administration(553-3001-311) for LD 97 service change instructions.Table 183Transmission Profile ChangesVintage A/D convertor gain D/A convertor gainPrevious to AK –3.5 dB –2.5 dBAK and later –3.5 dB –0.5 dB