Grandstream Networks UCM6510 - Digital Trunks; Figure 26: Status - Trunks

UCM6510 Basic Configuration Guide Page 25 of 29
To verify if the SIP trunk is registered, the user may navigate to Web UI->Status to check the trunk status.
Figure 26: Status - Trunks
DIGITAL TRUNKS
Please refer to sample T1 trunk configuration in the document here:
http://www.grandstream.com/products/ucm_series/ucm65xx/documents/how_to_configure_t1_on_ucm65
10.pdf