Dialogic Global Call IP Benutzerhandbuch

445

Dialogic Corporation

   .
/* Append/create GC_PARM_BLK with specified 183 response code*/
gc_util_insert_parm_val(&parmblkp, 
                        IPSET_SIP_RESPONSE_CODE, 
                        IPPARM_ACCEPT_RESP_CODE, 
                        sizeof(unsigned short, &acceptCode);

rc = gc_SetConfigData(GCTGT_CCLIB_NETIF, boardDev, parmblkp, 0, 
                      GCUPDATE_IMMEDIATE, &request_id, EV_ASYNC);
if (rc != GC_SUCCESS)
{
   /* handle error */
}
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   .
   .

This function is only available if the call transfer supplementary service was enabled via the 
sup_serv_mask field in the IP_VIRTBOARD structure when the board device was started.

Either the rerouting_num (of type char*) or rerouting_addrblkp (of type 
GCLIB_ADDRESS_BLK*) fields of the GC_REROUTING_INFO structure can be used to 
specify the rerouting address string to be signaled back to party A and its final destination to party 
B. The sub_address fields of the GCLIB_ADDRESS_BLK are ignored and not used. 

If both fields are used, the rerouting address string will be a concatenation of the information from 
both fields. 

The GCEV_ACCEPT_INIT_XFER event is received by the application on the 
secondary/consultation call CRN once the transferred call is received as notified via the 
GCEV_OFFERED event. 

If the call transfer is abandoned by parties A or B before the transfer is completed, the 
GCEV_ACCEPT_INIT_XFER_FAIL event is received with a CCLIB cause value of 
IPEC_H4502CTAbandon and a Dialogic

®

 Global Call API cause value of 

GCRV_CALLABANDONED. 

If the CTT2 timer (20 seconds) expires before the transfer is completed, the 
GCEV_ACCEPT_INIT_XFER_FAIL event is received with a CCLIB cause value of 
IPEC_H450CTT2Timeout and a Dialogic

®

 Global Call API cause value of GCRV_TIMEOUT. 

This function does not apply to SIP call transfer. In SIP, party A does not notify party C in advance 
of requesting an attended (supervised) transfer operation with gc_InvokeXfer( ), so there is no 
opportunity for party C to accept or reject the transfer at the initiation stage.