08-11-2008 07:35 AM - edited 03-15-2019 12:32 PM
We recently purchased two 7975's and the handsets are different than our 7940's and 7960's. There seems to be a lack of higher pitch. The call volume is good and the clarity is there it just sounds like a more narrow range. I know this sounds petty but I have a few users that would balk at this immediately.
We RMA'd the handsets and I got back one that was the old style and one that was the new.
08-11-2008 08:03 AM
Thats odd.
The 7975 support G722 and has improved acoustics design on the Speakerphone and handsets. We recently acquired a number of 7945s and I find that the improved acoutic design makes the sound superb, even without using G722 codec. Having a phone converstation with another 7945 user sounded like I was talking to a person right next to me.
Even calls to the PSTN sounded a tad more natural.
08-11-2008 08:28 AM
Hi Rusty,
Just thought I would add the reference doc to the good info from Jeffrey. (+5 points here Jeffrey :)
Cisco Unified IP Phone 7975G Q & A
Wideband/Codecs
Q. What is wideband? What are the advantages?
A. Wideband audio expands the available spectrum for voice communications from the standard PSTN range of approximately 300-3300 Hz to approximately 150-7000 Hz.The increased spectrum/frequency response leads to greater voice clarity, intelligibility, "richness," and less listener fatigue.
Hope this helps!
Rob
PS: you really need to use the "new" handsets with this IP Phone model.
08-11-2008 09:35 AM
I'm not sure when we will enable G722 but I will try and get used to the new handsets. Other than the handset difference I agree the 7975 is superior.
Thanks for the responses, Rusty
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