casdtechdir
IS-IT--Management
Looking for some help to resolve phone quality issues over a fiber link I have between 2 of my buildings.
My current setup is I have 2 buildings on my campus. Linked by 1 gig fiber connection. Both locations have a brand new Avaya IP Office phone systems.
I have a PRI connection at Building 1, The PRI connected to my Building 1 IP Office. I have an IP Trunk from my Building 1 IP Office that connect over the 1 gig fiber to my Building 2 IP Office.
My issue is with calls between by 2 buildings (from IP Office to IP Office) and outside calls that are made or received at Building 2 (because my outside PRI connection is located at Building 1, all external calls for Building 2 are routed over my 1 gig fiber through Building 1 IP Office and through PRI)
Call Quality issues are static, echo, jitter, and sometimes to the point where you are unable to hear anyone at all.
***** CALL ISSUES ARE ON BUILDING 2 SIDE OF CALLS - For example is someone from Building 1 calls Building 2, the person calling from Building 1 hears everything fine without any issues. The person at Building 2 has all the quality issues (static, echo, jitter, or can't hear anything at all.
**** THIS SOUNDS LIKE COULD BE THE MOST HELPFUL PIECE OF INFORMATION ---- POINTING TO A POSSIBLE ISSUE WITH BUILDING 2 IP OFFICE ?????
The most troubling part about this is that the call quality problems are completely random. I can go a few days without any issue or maybe 1 bad call, then 1 day I just get hammered with call quality issues.
I do already have VLAN setup for phone traffic only that is separate from all other networking. I have HP Procurve switches / router and have made the phone VLAN a voice vlan (I believe this simplifies all QOS and makes this vlan a priority on the network????)
Some things i have already done to try and resolve the issue: 1 - I have multiple strands of fiber between building. I have set the phone "voice" vlan to a dedicated fiber link between my buildings. (So the path is - Building 2 IP Office NIC, Building 2 HP Switch port, Building 2 HP Switch Fiber Trunk, Dedicated Phone VLAN inter-building fiber link, Building 1 HP Router Fiber Trunk, Building 1 HP Router port, Building 1 IP Office NIC. Along this path all HP network ports are only visible to the phone "voice" vlan. No other vlans are tagged or untagged on these ports.
2 - I have checked the network cable between Building 2 IP Office and Building 2 HP switch and swapped out with a pre-made certified cat-5 cable. The original one form install was a homemade cat-6 and seemed faulty.
3 - Multiple restarts of Building 2 IP Office, Building 2 HP Switch, Building 1 HP Router. I have also re-seeded the fiber link and g-bics on both ends of fiber.
Even after all of this I still get random days with call quality issues. Looking at system status under call quality of service alarms Building 2 always is full of alarms for Jitter, Round Trip Delay, and Packet Loss.
Has anyone ever seen local Windows DNS Server issues cause problems with IP Office call quality is similar configurations as mine? Also i am not sure if it is just a fluke, but i have a Windows WDS (Windows Deployment Server) That is used for imaging machines on my network. Whenever I re-image 1 or multiple computers on my network, it seems to relate to phone quality issues between my buildings. I believe the WDS server uses multi-cast transmissions to send the image down to the computer being imaged.
Any help is appreciated. I am at loss.
My current setup is I have 2 buildings on my campus. Linked by 1 gig fiber connection. Both locations have a brand new Avaya IP Office phone systems.
I have a PRI connection at Building 1, The PRI connected to my Building 1 IP Office. I have an IP Trunk from my Building 1 IP Office that connect over the 1 gig fiber to my Building 2 IP Office.
My issue is with calls between by 2 buildings (from IP Office to IP Office) and outside calls that are made or received at Building 2 (because my outside PRI connection is located at Building 1, all external calls for Building 2 are routed over my 1 gig fiber through Building 1 IP Office and through PRI)
Call Quality issues are static, echo, jitter, and sometimes to the point where you are unable to hear anyone at all.
***** CALL ISSUES ARE ON BUILDING 2 SIDE OF CALLS - For example is someone from Building 1 calls Building 2, the person calling from Building 1 hears everything fine without any issues. The person at Building 2 has all the quality issues (static, echo, jitter, or can't hear anything at all.
**** THIS SOUNDS LIKE COULD BE THE MOST HELPFUL PIECE OF INFORMATION ---- POINTING TO A POSSIBLE ISSUE WITH BUILDING 2 IP OFFICE ?????
The most troubling part about this is that the call quality problems are completely random. I can go a few days without any issue or maybe 1 bad call, then 1 day I just get hammered with call quality issues.
I do already have VLAN setup for phone traffic only that is separate from all other networking. I have HP Procurve switches / router and have made the phone VLAN a voice vlan (I believe this simplifies all QOS and makes this vlan a priority on the network????)
Some things i have already done to try and resolve the issue: 1 - I have multiple strands of fiber between building. I have set the phone "voice" vlan to a dedicated fiber link between my buildings. (So the path is - Building 2 IP Office NIC, Building 2 HP Switch port, Building 2 HP Switch Fiber Trunk, Dedicated Phone VLAN inter-building fiber link, Building 1 HP Router Fiber Trunk, Building 1 HP Router port, Building 1 IP Office NIC. Along this path all HP network ports are only visible to the phone "voice" vlan. No other vlans are tagged or untagged on these ports.
2 - I have checked the network cable between Building 2 IP Office and Building 2 HP switch and swapped out with a pre-made certified cat-5 cable. The original one form install was a homemade cat-6 and seemed faulty.
3 - Multiple restarts of Building 2 IP Office, Building 2 HP Switch, Building 1 HP Router. I have also re-seeded the fiber link and g-bics on both ends of fiber.
Even after all of this I still get random days with call quality issues. Looking at system status under call quality of service alarms Building 2 always is full of alarms for Jitter, Round Trip Delay, and Packet Loss.
Has anyone ever seen local Windows DNS Server issues cause problems with IP Office call quality is similar configurations as mine? Also i am not sure if it is just a fluke, but i have a Windows WDS (Windows Deployment Server) That is used for imaging machines on my network. Whenever I re-image 1 or multiple computers on my network, it seems to relate to phone quality issues between my buildings. I believe the WDS server uses multi-cast transmissions to send the image down to the computer being imaged.
Any help is appreciated. I am at loss.
