Silent calls on SIP Trunk

[Gunnaro]

Hi guys!

Got an ugly case hanging on my shoulders:

IPO 500 V1, 10 IP extn,IP 1616 phones local powered, 30 sip ch. (they got loads of inbound traffic + twinning on all extn).

Inbound are randomly silent when picking up. Agent sometimes hears rapid busy tone.
If the agent hangs up quickly, the same call starts ringing again, and then it's all fine.

SIP Trunk comes in on WAN (have tried swapping ports on the fibre switch, physically bypassing the fire wall, etc).
Provider of the trunk has done traces and can't find anything wrong.

Phones are on LAN port, together with the computers and servers.

SIP config is a blueprint of a system that has been running flawless for years, with same SIP provider.

Anyone experienced similar conditions?


Kind regards
Gunnar

 

[Gunnaro]

As far as I know,
Klinken = Sounds (like fun)
Klanken = Sound (audio)
Turnen = Gymnastics
Lampe = Lamp
..in Dutch.

Peter, please correct me if I'm wrong



Kind regards

Gunnar

________________________________________

Oh, for fox sake!

 

[tlpeter]

Your are right (almost)
Lampen is for lamps (multiple)


BAZINGA!

I'm not insane, my mother had me tested!