*** app_h324m.c	Tue May  6 12:11:11 2008
--- app_h324m_sven.c	Tue May  6 12:18:55 2008
***************
*** 184,189 ****
--- 184,193 ----
  	struct ast_frame* send;
  	unsigned char* data = 0;
  
+ 	/* 1st dummy AMR-SID frame (comfort noise) */
+ 	static unsigned char last_amr_sti[6] = { 0x78, 0x46, 0x00, 0x94, 0xA4, 0x07 };
+ 	
+ 
  	/* Get data & size */
  	unsigned char * framedata = FrameGetData(frame);
  	unsigned int framelength = FrameGetLength(frame);
***************
*** 213,218 ****
--- 217,233 ----
  			unsigned char header = framedata[0];
  			/*Get mode*/
  			unsigned char mode = header & 0x0F;
+ 			
+ 			if (mode==8 && framelength==6) {
+ 			  /* save AMR-SID frame */      
+ 			  memcpy( last_amr_sti, framedata, 6 );			
+ 		        } else if (mode==15) { /* AMR No-Data packet --> replace with last AMR-SID */
+ 			  mode = 8;
+ 			  framelength = 6;
+ 			  framedata = last_amr_sti;     			        
+ 			}
+ 			
+ 			
  			/*Get number of stuffing bits*/
  			unsigned int stuf = if2stuffing[mode];