По идее это не вейвком, это стандарт...
Цитата("ETSI TS 100 916 V7.8.0")
4.2 Information responses and result codes
The TA response for the example command line of figure 2 could be as shown in figure 3. Here, verbose response
format is enabled with command V1. If numeric format V0 would have been used, <CR><LF> headers of information
responses would have been left out and final result code changed to 0<CR>.