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steve1111
join:2009-09-23
Albany, NY

steve1111

Member

Re: [General] Receiving calls from cell phones to Voip phone

My Voip phone allows for G722, G711u, G729a and several G726's but not GSM. I don't know the carriers of the cellphones used by people who call me. Even if I did know the carriers, what could I do?

I suppose, as time goes by, the percentage of calls from cellphones will increase and the percentage of calls from landliones will decrease, so the overall quality of calls will deteriorate. And there is nothing to do except to curse cellphones - and the carriers.
IPfaxer
join:2010-10-24

IPfaxer

Member

have a lot of Cisco SPA2102s deployed so I recall this problem from a couple years ago
G711u for starters and definitely for any fax pass-through
G711a for 2nd choice
don't even allow others

(some carriers do u and not a and vice-versa)

the bandwidth saving codecs are not worth it
make sure your ATA is not clipping "silence" - that will make latent calls sound worse and in and out - check all your settings

also depends on quality of your VOIP carrier
if you are using SIP phones/software also check for silence clipping, etc.
PX Eliezer704
Premium Member
join:2008-08-09
Hutt River

PX Eliezer704 to steve1111

Premium Member

to steve1111
said by steve1111:

I suppose, as time goes by, the percentage of calls from cellphones will increase and the percentage of calls from landlines will decrease, so the overall quality of calls will deteriorate.

It's up to the cellphone customers to complain.

I think there's a general perception that Verizon Wireless has the best network in Manhattan, ahead of AT&T.

From the Wall Street Journal in May 2010:

Dropped calls also happen because of quirks in the way carriers have set up their networks. For example, AT&T Inc. routes calls south of 59th Street in Manhattan to a switch downtown. North of 59th, calls go to a facility in Westchester. So when an AT&T customer crosses 59th, calls can get dropped as the network reshuffles from one switch to the other. Nielsen recorded three fails on or near that dividing line. AT&T declined to discuss coverage at 59th in further detail.

OTOH:

Putting up new cell sites often means dealing with zoning regulations, pushy landlords or community resistance. In the seven years that Chris Hillabrant has been T-Mobile's vice president for engineering in the New York region, he's seen community resistance to new cell towers get "better funded and much better organized."

"Now, they'll bring in their own experts to prove that T-Mobile already has sufficient service or enough cell sites," Mr. Hillabrant says.

So people want a cell phone in their back pocket, but do NOT want a tower in their back yard.

The use of smartphones with their gluttonous demands for data has further strained networks....

Arne Bolen
User of Anveo Direct, 3CX and Qubes OS.
Premium Member
join:2009-06-21
Utopia

Arne Bolen

Premium Member

said by PX Eliezer704:

So people want a cell phone in their back pocket, but do NOT want a tower in their back yard.

But they still expect good a good signal.