The LG Vertical Summit is a hybrid IP PBX which offers a robust digital and VoIP solution.
SIP Data/SIP CO Attributes (PGM133) on CO Range (your range) for correct communication with our trunks. In this example we have added provisioning for our Dynamic routing within our VoIP network using multiple trunks.
These examples are an extension to the single Trunk configuration found HERE
Trunk 1
Trunk 2
Then we will select CO Line Data/VoIP Attributes (PGM142) and our CO range will be (your ranges). Setting the CO VoIP Mode to SIP & RTP-Packet-Relay. 
SIP trunk user ID settings user index 1 ( or your assigned index ). SIP Data/SIP User ID Attributes (PGM126)
Trunk 1
Trunk 2
Asc Station Number settings for your internal routes:
Trunk 1 & 2
