localhost*CLI> iax2 show callnumber usage 
Address                                       Callno Usage Callno Limit
212.71.238.178:4566                           2050         4048        

Non-CallToken Validation Callno Limit: 8192
Non-CallToken Validated Callno Used:   0
Total Available Callno:                30716
Regular Callno Available:              14332
Trunk Callno Available:                16384