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« on: February 22, 2018, 07:33:02 PM »
Hello,
Installed a 3300 at company location "A". Connected to SX200 ICP at company location "B" via IP trunks on company WAN. (WAN is radio between sites) Had an intermittent problem from day one on site to site extension calls. Three second delay in set up of audio on the 3300 side. IT techs had me use VLAN 110 at site A and VLAN 10 at site B. After much back and forth IT techs had me put both Mitel systems on VLAN 10. They did some other upgrades to routers and firewalls.
Now trouble has changed. It is still intermittent. Calls set up fine (no initial delay) but audio from 3300 side drops after several seconds. Immediate subsequent calls between same extensions have no audio from 3300 side. After waiting for some time it seems to reset to: call is fine then audio drops after several seconds, subsequent calls no audio. I did find one phone at site B I could call and not have problem happen at all. I went to site B today to see if that set was programmed differently. It had L2 priority default set to 6 and no settings for L2 Voice or L2 Signal as I usually put those to 6. I thought I may have found a solution. But after changing another set to these settings I discovered I could not get the trouble to reoccur on ANY test calls this morning. It's hard to fix something that ain't broke. Asked them to call me back when it starts doing it again. Calls started failing again a couple hours later. Any help would be appreciated. Also a link to a resource that may explain to me how the Mitels set up and release these calls would help. I really don't know how calls are handled by the Mitels in this environment. Thanks folks.