M3904

I had experience on the router setting and cause the same problem. Try ping the MC card using the ip segment of i2004 to identify the ip <--> TDM connection is OK.

Spanton

check the duplex on your switch ports. should be set to a 100 full

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M1tech

Somewhere in the physical network between your i2004 you are experiencing a duplex mismatch...given you are experiencing this when transcoding between IP and TDM it is probably where the VGMC connects on the TLAN.

Most Nortel prodcut is set up as Autonegotiate out of Box...so if your forced full anywhere any you are talking to a device that can only Autonegotiate you end up with a duplex mismatch. Autonegotiate will match speed with forced network ports but sets itself to half duplex, which is why you are getting one way speech.

rajblr1

It is 100mps and autonegotioate in the data switch port

and i am able to ping the media card from the i2004 set

but still one way speech.

from i2050 to TDM two speech is there.

Spanton

set the data switch port to 100 mps also.

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Fletch

Duplex mismatch will not really cause 1 way speech. There will however be a severe degredation of packet flow which will cause all sorts of other problems due to packet collisions.

There is a signalling path and a voice path on the phone. The signaling path goes to the CS1000 (signaling server) and the RTP or voice path goes directly to the other IP endpoint (in this case the VGMC Card).

NAT can cause this problem (the IP trafic can find it's way in only 1 direction), or a CODEC mismatch. Check your zones for all devices.

In any case, you most likely have a Layer 2 issue in the data setup someplace.

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rajblr1

the hard phone tn is in the zone 0000

And the VGMC ZONE IS in the 000 in LD 14

The zone is 000 CONFIG is as follows

Intrazone bandwidth is 10000 kbps and best quality (BQ), USAGE is 0 %

The interzone bandwidth is 10000 kbps and best quality(BQ),USAGE is 0%

and it is shared type.

gwebster

From the Data Networking NTP:

"Configuring endpoints in bandwidth zone 0 is not a supported configuration. Configure zone 0, but do not use it. Ensure that no endpoints (for example, IP Phones, VGWs, or vtrks) are in zone 0."

slagburn

I read a document that was passed out at GK (can't find it right now) that said the same as what GW posted however it did mention something about leaving the i2050 in zone 0.

A zone issue should result in the call not even being completed - IP to IP seems to work but the speech path failure between IP and TDM points to something amiss with the media card or some type of port blocking occuring if there aren't any duplex mismatch issues.