Asterisk register sip trunk software Huawei

Hello All,
There is the software from of a local operator on Huawei,the software is registered under marketing brand and the name have not found.I want to register a SIP trunk on Asterisk.
The data contained in the software:
Login Server: 76.45.65.40 port 5060
Domain: ims.korektel.com
Group Server IP:76.45.60.22 port 9190
Proxy Server addres: 76.45.60.22 port 9190
username:07503695859 password:XXXXXXX

In Asterisk, I have written:

register =>07503695859:XXXXXXX:07503695859@korek/07503695859

[korek]
type=friend
username=07503695859
secret=XXXXXXX
dtmfmode=rfc2833
host=76.45.65.40
context=incoming
outboundproxy=76.45.60.22
port=9190
fromuser=07503695859
fromdomain=ims.korektel.com
usereqphone=yes
canreinvite=no

CLI> sip reload
CLI>-- Registration for ‘07503695859@korek’ timed out, trying again (Attempt #1)
CLI>-- Registration for ‘07503695859@korek’ timed out, trying again (Attempt #2)
CLI>-- Registration for ‘07503695859@korek’ timed out, trying again (Attempt #3)

Trying to cost to call - is also nothing.

After registering in the software noticed is added prefix code +9647503695859 but at registration in the software It is 07503695859.I changed username=+9647503695859 and register =>+9647503695859:XXXXXXX:+9647503695859@korek/+9647503695859 without result
CLI> sip reload
CLI>-- Registration for ‘+9647503695859 @korek’ timed out, trying again (Attempt #1)
I called the operator to they do not know and recommend the use of their software from Huawei.
Please, help!!!