About pstraatsma

At a handful of locations when someone calls in and the staff go to pick-up the call it does not pick-up and continues to ring on other phones in the office. When they place someone on hold, sometimes it does not come off hold and they call is dropped. When they transfer someone it does not always transfer the call.   Cisco Call Manager shop. We have SIP ALG disabled, does not seem to help.   This is at a remote location with excellent response time and no packet loss.    The location is connected back to the main office over a VPN tunnel from the Palo to an ASA at the corp office. The call manager is at the corp office where the phones register too.   No NAT is in use.   If I put the old ASA back in place at the remote office it works fine. ... View more

We are in the process of converting over to Palo Alto firewalls at our remote locations from ASA firewalls. A few of our sites now are having some strange issues when attempting to make phone calls.We are a Cisco call manager shop.   Here is a basic setup of our network: Remote Office <-Site to site VPN tunnell-> Main Office   Voice setup between those locations: Analog lines (connected to router) - Remote Router - Remote Palo Alto <-Site to site VPN tunnell-> Main Office ASA firewall - Main Office Call-Manager   When someone at the remote location dials a external number, the phones SOMETIMES rings busy, even when the external phone number is not actually busy (tested and verified). The call will go through to the remote number but when they answer all they get is dead air. SOMETIMES the call goes through just fine. SOMETIMES when the call works and when the external number hangs up first the call stays active on the remote office's desk phone.   We've tried turning off ALG inside the SIP application, but when we test locally by setting up the calling search space to the remote office at a main office phone where we work, we still have problems. ... View more