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Transferring Calls Using Release Link Trunk Transfer
November 2009 208
/***********************************************************************/
/********** Send alerting ****/
/***********************************************************************/
void send_alert(int spy_chan, int call_ref)
{
L4_to_L3_struct *L4L3cntlp;
L4_to_L3_struct msg;
L4L3cntlp = &msg;
zero_msg(L4L3cntlp);
L4L3cntlp->lapdid = spy_chan;
L4L3cntlp->L4_ref = 0;
L4L3cntlp->call_ref = call_ref;
printf("%d: Snd L4L3mALERTING_REQUEST \n", spy_chan);
L4L3cntlp->msgtype = L4L3mALERTING_REQUEST;
if (spy_chan == NETWORK) /* we know the net is sending a facility */
{
L4L3cntlp->data.al_con_data.interface= 0xff;
L4L3cntlp->data.al_con_data.bchannel= g_bchan;
L4L3cntlp->data.al_con_data.ie_count = 1;
L4L3cntlp->data.al_con_data.ie.ie_id = 0x1c; /* facility */
L4L3cntlp->data.al_con_data.ie.ie_length = 0x0e;
L4L3cntlp->data.al_con_data.ie.ie_data[0] = 0x91; /*rose*/
L4L3cntlp->data.al_con_data.ie.ie_data[1] = 0xbe; /*rlt*/
L4L3cntlp->data.al_con_data.ie.ie_data[2] = 0xa2; /*RR*/
L4L3cntlp->data.al_con_data.ie.ie_data[3] = 0x09; /*length*/
L4L3cntlp->data.al_con_data.ie.ie_data[4] = 0x02; /*id tag*/
L4L3cntlp->data.al_con_data.ie.ie_data[5] = 0x01; /*id len*/
L4L3cntlp->data.al_con_data.ie.ie_data[6] = 0x01; /*inv id*/
L4L3cntlp->data.al_con_data.ie.ie_data[7] = 0x02; /*seq tag*/
L4L3cntlp->data.al_con_data.ie.ie_data[8] = 0x01; /*seq len*/
L4L3cntlp->data.al_con_data.ie.ie_data[9] = 0x01; /*op tag*/
L4L3cntlp->data.al_con_data.ie.ie_data[11] = 0x01;/*op len*/
L4L3cntlp->data.al_con_data.ie.ie_data[12] = 0x80; /*op val*/
L4L3cntlp->data.al_con_data.ie.ie_data[13] = 0; /*callid*/
L4L3cntlp->data.al_con_data.ie.ie_data[14] = 0;
}
pridrv_tx_cntl_buf( L4L3cntlp);
}