+#ifdef SEAMLESS_TEST
+ unsigned char test_tone[8] = {0x2a, 0x24, 0xb4, 0x24, 0x2a, 0x25, 0xb5, 0x25};
+ p = buff + MISDN_HEADER_LEN;
+ for (i = 0; i < len; i++)
+ *p++ = test_tone[(bchannel->test + i) & 7];
+ bchannel->test = (bchannel->test + len) & 7;
+#endif
+ if (bchannel->nodsp_queue) {
+ space = (bchannel->nodsp_queue_out - bchannel->nodsp_queue_in) & (QUEUE_BUFFER_SIZE - 1);
+ if (len > space) {
+ CERROR(bchannel->call, NULL, "Queue buffer overflow.\n");
+ return;
+ }
+ p = buff + MISDN_HEADER_LEN;
+ in = bchannel->nodsp_queue_in;
+ for (i = 0; i < len; i++) {
+ bchannel->nodsp_queue_buffer[in] = *p++;
+ in = (in + 1) & (QUEUE_BUFFER_SIZE - 1);
+ }
+ bchannel->nodsp_queue_in = in;
+ if (bchannel->queue_sent == 0) /* if there is no pending data */
+ bchannel_send_queue(bchannel);
+ return;
+ }