Re: VOIP Call Disconnects on answer/ off hook

jtattoo · ‎10-02-2007

Hi

I am having a problem whereby IP calls coming in over the WAN are being dropped on lifting up the handset. In the past I have had this problem when there is a routing problem but this does not seem to be the case this time. Do you have any suggestions on what this could be ?

Call Flow is

PSTN->PBX->E1->3825->MPLS->3825->E1->IPPBX->IP Phone

ccieid10t · ‎10-03-2007

Try answering with the speaker button. If it answers than you have an issue with your handset trigger.

jtattoo · ‎10-03-2007

Hi

There are multiple phones. The problem is also intermittant, it will work fine for a while and then 5 or so calls will disconnect as soon as it is answered. Then it will work fine for a while.

agonza07 · ‎01-02-2008

Had a similar problem, but not intermittent. One of my routers was forcing a codec on a dial peer, so I was getting a codec mismatch. Calls would ring but as soon as someone answered, it would disconnect the call. And it was only when accessing that dial peer.

jtattoo · ‎01-02-2008

Hi Guys

Problem was a dodgy DSP.

Thanks