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Can Combo (VCMs) cards really cause this?

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yankblan

Vendor
Jun 17, 2010
831
CA
Simplistic overview of a huge problem:

Site A: IP Office
Site B & C: 1608 remote phones

VPN (star design) from B & C to A.

Phones started randomly dropping connection; both sites just dropped at the same time, as did the ATAs (SIP) installed for 911 purposes. Does this at least 10 times a day. Also lost connection to SMTP server (ISP's server, not local).

Upgraded to latest 9.0.5, also changed the IPO cabinet, the SD card, the site A router twice (second time for another brand); ISP says everything is fine on their side. Also noticed while installing 1608 locally on the same router as the IPO, that both the local and remote phones wouldn't take their new firmware (digital phones did).

I pulled out the combo cards, and now over 90 minutes and no drop. Of course I can't call because of lack of VCMs, but the phones stay up now.

Am I just grasping at straws? I have over 30 hours on this, and this is the longer I've seen without them dropping since it began.

ACSS-SME

 
It may have been the power down reboot that fixed it as oppose to the removal of the combo card(s), VCMs aren't in use until a call is made and then not always, unless the codecs don't match or IP to TDM :)

 
Having said that... I have recently been dealing with someone that has IP phones that would not register for long and would seem to not take firmware etc, I just had them replace the handset (again), but thinking on it does have a combo card fitted......[ponder] I've seen combos cause oddness but never this.....

 
They also have 10 SIP trunks that run like a champ though.... so I never suspected the VCM at fault :)

 
The 50 reboots you were talking about were hard tenor or just soft reboot?
I have seen problems that got resolved with a complete power cycle that the soft reboots did not fix. Changing hardware means for sure taking the power off.

Joe W.

FHandw, ACSS (SME), expired ACIS (SME)


"This is the end of the world, make sure to buy your T-shirt before it is too late"
Original expression of my daughter
 
They also have 10 SIP trunks that run like a champ though.... so I never suspected the VCM at fault"

Andy, using a STUN server with Run stun on startup?

APSS/ACIS/ACSS-SME
not arrogant, just succinct.
 
Nope, no STUN or port forwarding required.... we use decent trunks :)

 
ok, just asking...

APSS/ACIS/ACSS-SME
not arrogant, just succinct.
 
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