Dismiss Notice
We would like to remind you that we’re updating our login process for all 3CX forums whereby you will be able to login with the same credentials you use for the Partner or Customer Portal. Click here to read more.

Fax server does not handshake when receiving an Anonymous

Discussion in '3CX Phone System - General' started by coreybrett, Nov 2, 2010.

Thread Status:
Not open for further replies.
  1. coreybrett

    Joined:
    Apr 12, 2010
    Messages:
    72
    Likes Received:
    0
    My 3CX fax server does not initiate handshake when receiving a call from an Anonymous caller (caller ID blocked).

    I have several DIDs pointing to different extensions for faxing purposes.

    So for example I have 16173998217 set to “Send fax to” “email of extension 221 Corey Boyle”

    This works great as long as the incoming fax is sent from a line that does not have caller ID blocked.

    If the caller ID is blocked, the fax server answers the line, but never gives tones.

    I can confirm this with my iPhone by switching “show my caller ID” on and off.
    If I call with “show my caller ID” set to “on” I hear the tones.
    If I call with “show my caller ID” set to “off” I do not hear the tones.

    Any help would be appreciated, as this causes quite an issue for me and my users. A surprising number of faxes are sent from lines with caller ID blocked.

    I have attached a portion of my server log.
    You can see an anonymous call at 09:57:15.266 and a normal call at 09:57:48.534.
     

    Attached Files:

Thread Status:
Not open for further replies.