Revert "error fixing"

This reverts commit bfadb6f41d6f19ce967a6d9eaaefbbc08fe9bf68.
Revert "minor fix"

This reverts commit bc14be56b650f95abd68b201f009a55319b49ccf.

Conflicts:
	calling.js
Revert "minor correction"

This reverts commit 0b21f6c244eb398edeb0b1eca491e1a34a161b7f.
Revert "visio call"

This reverts commit d2b2eac93f97efc29cccdbecfdd814ca124cd72e.
Revert "fix"

This reverts commit bf1f028aa7c29ada33bd8cc6d1dd93eab9f4c6a5.