Yes, Zoom has toll numbers available for all plans. Please check out this article for more information. However, you may be charged for these calls and it is recmmended you attempt to sign in via an internet connect first.
US Based Zoom Phone Numbers:
+1 929 436 2866
+1 312 626 6799
+1 669 900 6833
+1 253 215 8782
+1 301 715 8592
+1 346 248 7799