[asterisk-users] chan_ss7 with ringing, but no voice stream.

[lizhong zhu]

hello, all of users:
sorry, resend it again for clarifying the message. I have implemented cha_ss7 in china. initially, the
chan_ss7 can not support the call group. i modify the code.
now the problem is that, both sides can hear the ring, but i
can not hear the voice from each other. 
i think the ss7 does not send the voice steam to the destination. 
 in chan_ss7, i added:
=================================================== 
static struct ss7_chan *cic_hunt_even_mru(struct linkset*
linkset) {
struct ss7_chan *cur, *prev, *best, *best_prev;
best = NULL;
best_prev = NULL;
for(cur = linkset->idle_list, prev = NULL; cur !=
NULL; prev = cur, cur = cur->next_idle) {
/* Don't select lines that are resetting or
blocked. */
   if(!cur->reset_done || (cur->blocked
& (BL_LH|BL_RM|BL_RH|BL_UNEQUIPPED|BL_LINKDOWN))) {
    continue;
    }
/* if((cur->cic % 2) == 0) {  */
/*change to this*/
if(((cur->cic % 2) ==
0)&&0==strcasecmp(cur->link->name,linkname))
{
      /* Choose the first idle even circuit,
if any. */
 /*end of change*/      
 best = cur;
       best_prev = prev;
       break;
     } else if(best == NULL) {
       /* Remember the first odd circuit, in
 case no even circuits are
          available. */
       best = cur;
       best_prev = prev;
     }
   }
 
 cic_hunt_even_mru  if(((cur->cic % 2) ==
 0)&&0==strcasecmp(cur->link->name,linkname))
 {
 my environment is:
 asterisk-1.4.20
 chan_ss7-1.0.91
 Openvox D410P
 ===========================
 anyone has an idea for the problem?
 please give me some hints!
thanks!
james.zhu