CUSTOM OID, Sip Trunk / PBX server

Tags: #<Tag:0x00007f84a7438220> #<Tag:0x00007f84a7438158> #<Tag:0x00007f84a7438090>

Dear Users,
I have a problem adding a custom oid to librenms and generating a graph.

We manage several voip servers in our company, and we need to monitor the number of sip trunks calls.

SNMP reads the oid ,

Is it possible somewhere to edit the custom oid field and add your own options ?