Cannot send sms (pending sms in playsms)

i use playsms and kannel ,
i can receive sms but i cannot send sms .
when i try to send a sms i got :

  1. 0: Accepted for delivery in the browser

  2. tail -f /var/log/kannel/smsbox.log
    sudo tail -f /var/log/kannel/smsbox.log
    2015-07-20 15:20:12 [2711] [3] INFO: smsbox: Got HTTP request </cgi-bin/sendsms> from <127...>
    2015-07-20 15:20:12 [2711] [3] INFO: sendsms used by
    2015-07-20 15:20:12 [2711] [3] INFO: sendsms sender:playsms:2******* (127.
    ..) to:<2*******> msg:
    2015-07-20 15:20:12 [2711] [3] DEBUG: Stored UUID f5a87ab8-bd95-413b-a9a6-eb37e9b454da
    2015-07-20 15:20:12 [2711] [3] DEBUG: message length 14, sending 1 messages
    2015-07-20 15:20:12 [2711] [3] DEBUG: Status: 202 Answer: <Sent.>
    2015-07-20 15:20:12 [2711] [3] DEBUG: Delayed reply - wait for bearerbox
    2015-07-20 15:20:12 [2711] [0] DEBUG: Got ACK (0) of f5a87ab8-bd95-413b-a9a6-eb37e9b454da
    2015-07-20 15:20:12 [2711] [0] DEBUG: HTTP: Destroying HTTPClient area 0x7f827c000a90.
    2015-07-20 15:20:12 [2711] [0] DEBUG: HTTP: Destroying HTTPClient for 127.*.*.*)'. 2015-07-20 15:31:13 [2711] [2] DEBUG: HTTP: Creating HTTPClient for127...*)’.
    2015-07-20 15:31:13 [2711] [2] DEBUG: HTTP: Created HTTPClient area 0x7f827c000a90.

  3. in playsms the sms is pending and not sent

have you any idea what is my problem ???