Welltech ePBX40 V.2.0 - Manual (Page 102)

Welltech Technology Co., Ltd. 102
5.1.2 ePBX40 register to IP Telephony Service Provider(ITSP) as a
SIP trunk
ePBX40 can register to another ITSP as a SIP trunk. So the Subscriber from ITSP and ePBX40
extensions can call each other.
Step1: Obtain register account
 Apply an account from ITSP with “Line number 0700666888, Account: 0700666888,
Password: 123123”. And the proxy address of ITSP is 211.22.42.195, port 5062. Maybe the
ITSP also need to provide “Realm”, so you should also enter Realm for the SIP Trunk,
otherwise the call from ePBX40 to ITSP may be rejected. For more information about
“Realm”, please contact with your ITSP engineer.
Step2: Set up ePBX40 to register ITSP.
 Enter the necessary information in SIP Trunk Reg page. In this example, the “Realm” is