gsm_encode_modem
*dp++ = (gsm_encode_modem(dlci) << 1) | EA;
*dp++ = (gsm_encode_modem(dlci) << 1) | EA;
*dp++ = gsm_encode_modem(dlci) << 1;
modembits[1] = (gsm_encode_modem(dlci) << 1) | EA;
modembits[1] = gsm_encode_modem(dlci) << 1;
modembits[1] = (gsm_encode_modem(dlci) << 1) | EA;