[Serusers] Problems with SER pdt module

[cgorand]

I use ser 0.8.14 with pdt module in order to call other people on other 
domain. 

a sample of my ser.cfg: 

loadmodule "/usr/local/lib/ser/modules/pdt.so"
modparam("pdt", "db_url", "sql://ser:ser_password@localhost/pdt")
modparam("pdt", "db_table", "domains")
modparam("pdt", "prefix", "2")
modparam("pdt", "terminator",0) 

route {
.....
loose_route(); 

  prefix2domain(); 

record_route();
....... 

} 

I entered in DB the code and domain matching. code = 333 
domain[333]=fwd.pulver.com 

(0 is the terminator digit by default) 


When I use Xten client (SIP softphone) and I call a user at fwd.pulver.com 
from mydomain.com : 23330XXXXX at fwd.pulver.com 

fwd.pulver.com tells me Too Many Hops ? 

Where is the problem ? fwd.pulver.com ? Or my SER ? 

My SER works perfectly with all users registered at it. 

Thanks you