Difference in call pitch

[BenM]

Hi,

We are just installing a network of 3 MXes and 250 5320/5330 handsets spread over three locations.

I have noticed that when I take calls on a 5330 the apparent pitch and timbre of the person on the other end is different to when I take calls on the 5320 - deeper and slightly burred, husky? - more 'sexy' if you like which is appropriate for some callers but I would rather the MD didn't sound like that when he calls my 5330

Caller 5320 - Listener 5320 - Both ends sound fine
Caller 5330 - Listener 5320 - Caller sounds fine to the Listener; Listener sounds husky to the caller
Caller 5320 - Listener 5330 - Caller sounds husky to the listener
Caller 5330 - Listener 5330 - Both sound husky

I have confirmed with other colleagues that I am not dreaming - the clarity and pitch on the 5320 is much better and more natural.

The 'feature' is apparent both locally and between sites.

We have no compression on the calls on the network, and the network is a completely uncongested 100mbit switched infrastructure locally and between sites.

Is this a 'feature' of the 5330? is it adjustable by a configuration setting on the MXe?

Any ideas gratefully received - and if it is something I have to live with then so be it.

Regards

[BenM]

OK - So I get minus several million out of 10 for observation.... the 5330 comes with a 'wideband' handset, where 'wideband' obviously means "low pass filtered"

B.

[Ray B]

How about swapping the handsets? Does the problem follow the handset or stay with the phone?

[BenM]

Hi Ray,

It is definitely the low pass filtered "wideband" handset that is the problem - move the handset onto a 5320 and the issue follows it.

I guess it must be a 'feature'.

B.