Problem login/pass to session CUE

[escomservices1]

HELLO 
when I try to session CUE the system asks me to authenticate. 
when I use the default credentials  of the uc (cisco / cisco) 
nothing happens ans this is the Result; 

UC560 # service-module Integrated-Service-Engine 0/0 session 
Trying 10.1.20.2, 2002 ... Open 
UC500 Base Config - Default 8.6.0 
User Access Verification 

Username: cisco 
Password: 

when I use login / password other than cisco / cisco 
this  is the Result 
UC560 # service-module Integrated-Service-Engine 0/0 session 
Trying 10.1.20.2, 2002 ... Open 
UC500 Base Config - Default 8.6.0 

User Access Verification 

Username: hdqhsqlhfoq 
Password: 

% Authentication failed

is there default credentials to access cue???

THANKX in advance for your help.

[Clifford McGlamry]

It's been a  while but I think it's either

<blank> and <blank>

or

admin and <blank>

I do remember that the out of the box enable is also <blank> (just hit return).

[escomservices1]

Hello ;

i switch to session with Hyperterminal and all its ok.

the default log/pass: cisco/cisco.