[Asterisk-Users] Cell gateway for T-Mobile US??

[Rusty Dekema]

In Europe, the 900 and 1800MHz bands are used for GSM. In the USA, the
800 (or "850" as some call it) and 1900MHz bands are used for GSM as
well as other protocols.

T-Mobile USA uses 1900MHz GSM exclusively, although they do have a few
territories in which GSM 800/850 roaming is allowed. So if you want to
connect a GSM gateway to T-Mobile, it must support the 1900MHz band,
and if you want to use it in some of T-Mobile's roaming areas, it
should also support the 800/850MHz band.

-Rusty



On 6/12/06, BerkHolz, Steven <StevenBerkHolz at tescogroup.com> wrote:
> Most gateways I have found are only sold overseas.
> Do these work in the US?
>
> My provider is T-Mobile (using their Blackberries).
> They support:
> GSM (I am pretty sure)
> GPRS
> EDGE
>
> We get unlimited Cell to Cell minutes and would like to leverage the
> possible savings.
>
> Does anyone know of a product that they have been happy with?
>
> SIP or Analog is fine although SIP (or IAX) is preferred for the
> asterisk side.
>
> Thanks.
>
> Steven
>
>
>
>
> Thank You,
>
> Steven BerkHolz
> - MCSA - MCSE -
> Manager of Information Systems
> TESCO Group Companies
> Fax. 248-836-5101
> www.TESCOGroup.com
>
> Board member of
> www.glimasoutheast.org
>
>
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