gkittelson
MIS
I've been an Avaya Certified partner and technician working on IP Offices for more than 10 years and I have a problem that has completely stumped me. I have a client with an Avaya IP Office 500V2 9.1.12 build 213 with all phones on latest firmware at local site is having one way audio issues on ONLY internal calls and never on Inbound and Outbound calls to external sources on our T1 PRI circuit.
All 100 phones, the phone system, and voicemail system are on a single VLAN at a site where no changes have been made in the switches in some time. All switches are gigabit POE with gigabit fiber links and phones on gigabit ethernet. All switches look fine with no ports showing heavy collisions or other issues.
In the last 10 days or so we started seeing one way audio loss on internal calls for this client. This can be on the same switch in the same building or on a different switch in different buildings. This is quite a large car dealership and I have four buildings that are all affected with the same problem. However, those same phones when on Inbound or Outbound calls from our PRI T1 will experience no loss of audio ever. All phones have direct media path enabled and are using the G729 codec.
I have used Wireshark to try and detect a broadcast storm potentially causing this problem but that would also effect external calls. I haven't been able to find anything on the network such as a loop or storm or any other of the usual suspects.
I have tried using the Monitor tool to attempt to troubleshoot this but I have to admit that I really don't know what I'm looking for. Any guidance on red flags there to look for would be greatly appreciated.
Since all of this traffic is on the local VLAN it can't be the router causing the problem can it? Traffic wouldn't even be passing through it since they're all on the same VLAN. I am at a loss for what this might be and I wanted to ask if anyone might have some advice for me on what to look for or if they've experience this? Thank you in advance for your assistance.
All 100 phones, the phone system, and voicemail system are on a single VLAN at a site where no changes have been made in the switches in some time. All switches are gigabit POE with gigabit fiber links and phones on gigabit ethernet. All switches look fine with no ports showing heavy collisions or other issues.
In the last 10 days or so we started seeing one way audio loss on internal calls for this client. This can be on the same switch in the same building or on a different switch in different buildings. This is quite a large car dealership and I have four buildings that are all affected with the same problem. However, those same phones when on Inbound or Outbound calls from our PRI T1 will experience no loss of audio ever. All phones have direct media path enabled and are using the G729 codec.
I have used Wireshark to try and detect a broadcast storm potentially causing this problem but that would also effect external calls. I haven't been able to find anything on the network such as a loop or storm or any other of the usual suspects.
I have tried using the Monitor tool to attempt to troubleshoot this but I have to admit that I really don't know what I'm looking for. Any guidance on red flags there to look for would be greatly appreciated.
Since all of this traffic is on the local VLAN it can't be the router causing the problem can it? Traffic wouldn't even be passing through it since they're all on the same VLAN. I am at a loss for what this might be and I wanted to ask if anyone might have some advice for me on what to look for or if they've experience this? Thank you in advance for your assistance.
