[Asterisk-Users] SIP error: Asked to transmit frame type 64

[Philipp von Klitzing]

Hi there,

I'll need some help with this: Trying to establish an IAX2 link between 
two servers works in one direction (SIP client with ulaw), but not in the 
other (SIP client with GSM). The client used for this is X-Lite behind 
NAT while both servers have a public IP (I playback an anouncement before 
trying to connect to the second *).

Error on the originating * server:

    WARNING[27670]: File chan_sip.c, Line 1148 (sip_write): Asked to transmit
    frame type 64, while native formats is 2 (read/write = 2/2)

I really _really_ have no clue why codec "16 bit Signed Linear PCM" is n 
the game here, to my knowledge that is not supported by X-Lite, and it is 
certainly not enabled anyware in the conf files either.

Should I file a bug report, or is this a setup problem on my side?

Philipp



In both sip.conf and iax.conf on both servers I have (with slight 
variations):

disallow=all
allow=gsm
allow=ilbc
allow=ulaw


We dial "98616" here:

exten => _9XXXX,1,Playback(transfer)
exten => _9XXXX,2,Ringing
exten => _9XXXX,3,Wait(1)
exten => _9XXXX,4,Dial(IAX2/myserv:mypw at remote-regist-server/${EXTEN:1})
exten => _9XXXX,5,Congestion
exten => _9XXXX,105,Playback(tt-monkeysintro)
exten => _9XXXX,106,Hangup


my chan_sip.c:

static int sip_write(struct ast_channel *ast, struct ast_frame *frame)
{
	struct sip_pvt *p = ast->pvt->pvt;
	int res = 0;
	if (frame->frametype == AST_FRAME_VOICE) {
		if (!(frame->subclass & ast->nativeformats)) {
--> -->		ast_log(LOG_WARNING, "Asked to transmit frame type %d, while 
native formats is %d (read/write = %d/%d)\n",
				frame->subclass, ast->nativeformats, ast->readformat, ast-
>writeformat);
			return -1;
		}


Related error reports I found:
http://www.mail-archive.com/asterisk-users@lists.digium.com/msg12648.html
http://www.mail-archive.com/asterisk-users@lists.digium.com/msg05602.html
http://www.mail-archive.com/asterisk-users@lists.digium.com/msg03242.html
http://www.mail-archive.com/asterisk-users@lists.digium.com/msg01139.html