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Questions tagged [cellular]

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use of modemCognitive member in the RIL_InitialAttachApn_v15 structure

AOSP has released the V15 RIL_InitialAttachApn, where i see the new member call modemCognitive As per the ril.h documentation for modemCognitive member "indicating the APN setting was sent to the ...
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1answer
8k views

Windows 10 as a router: NAT incoming NIC 1 traffic out via NIC 2 [closed]

I have a Windows 10 LTSB PC that I am trying to treat as a server (Running IIS and SQL) and a router, but the router side is giving me issues. I have 1 Ethernet based NIC (192.168.1.180 no gateway) ...
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1answer
90 views

Mobile ip assignement using NAT are location dependent?

This post explains very well the logic behind ip assignation for mobile devices but as far as I understand 1 IP can be assigned to various smartphones by the ISP using NAT. I would like to know if ...
2
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1answer
725 views

nginx not serving site on cellular data connection

I have a web server running nginx. If I access the website through a wifi connection, it loads the website. If I access it using LTE on my phone, it just shows the default "Welcome to nginx!" page ...
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1answer
608 views

How to route all internet requests to a local pc

I have a friend who works in a small office with ~10 computers + 4 servers. Local service provider told him that there will be a planned maintenance and they will have ~2-3 days of internet downtime. ...
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2answers
14k views

Do cellular network adapters (3G/4G/LTE) have MAC addresses?

We are implementing SSH restrictions by restricting by MAC address in iptables. Without the MAC address restrictions, using an app like iSSH, it's easy to access my server on the go to check on it's ...
-1
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1answer
359 views

how to log bandwidth usage on windows 8 [closed]

My Father has a Verizon jet pack (hotspot card). He is seeing 100+ MB spikes on the Verizon data usage report a few times a day. On July 4th the verizon data usage report online shows 6 GB were ...
5
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1answer
10k views

MTU on mobile data networks

I found various lists of MTUs for different links, but they never contain UMTS, LTE, EDGE, HSPA, GPRS. What are the MTUs of the above mentioned technologies?
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1answer
2k views

What are the data link protocols for cellular networks? [closed]

What are the link layer protocols for cellular networks? There are several platforms for high speed cellular networks. From GSM, to GPRS, W-CDMA, HSPA, LTE, etc. I (mostly) know about the physical ...
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1answer
95 views

Should a MobiTex service with a highly resilient website offer content over WAP? [closed]

I'm trying to offer services over the MobiTex network (also see wiki) and want to reduce double-work. I'm trying to understand if it is a good idea to WAP enable my website. Given that WAP usage is ...
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2answers
2k views

Alternate way to connect a vpn through a MIFI

This has gotten to be a major problem at our company and depending on who I ask, the problem either does not really exist (mfr. and vendor) or is insoluble ( according to most users including techs ...
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1answer
1k views

Pantech UML290 Verizon Driver

Is there a separate driver available for Pantech UML290 4G LTE USB Modem? I would prefer not to have to install VZAccess, but use the default Windows DUN support.
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2answers
2k views

Recomend a 2G/3G/4G router with two or more SIM cards [closed]

I'm looking for a device that takes two or more GSM SIM cards, connects over 2G/3G/4G, depending on what is available in that area, and aggregates those links for higher bandwidth and/or redundancy in ...
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1answer
136 views

Poor indoor cell phone signal [closed]

Due to the construction materials of an office building, cell phone reception is poor, and it's quite common that calls are dropped. AT&T, Verizon, and RIM are the typical cell phone networks ...
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2answers
1k views

Weird Mac Address at Windows 2003 DHCP Server

I am trying to configure a reservation for my Galaxy. The problem is that my DHCP is giving out an IP address to an obviously invalid MAC address (Galaxy Mac Address) - Please note attached ...
3
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1answer
228 views

Dynamic DNS service for low qps but high deployment count

I deploy cellular modems that currently have sims with static ip addresses. For various reasons, we may move to providing sims without static ips. The cellular modem supports DDNS (bluetree modem). ...
2
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1answer
9k views

How do I troubleshoot an IPsec tunnel (from a cellular router to a public server)?

I'm new to IPsec and struggling with a setup that might soon be widely used in our operations (provided I do understand it, eventually...). A cellular router (blackbox by netModule, from its log ...
0
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1answer
111 views

Receiving cell phone emails through MS Exchange 2007

I am encountering a strange problem whit receiving cell phone emails via my MS Exchange 2007. When my customer needs to send me a picture of a container he/she takes a photo with a cellphone and ...
2
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2answers
2k views

Keeping a persistent 3G connection on Windows

I'm in charge of managing an array of Windows Embedded 7 Standard based PCs (they act just like plain old Windows 7). The computers have 3G cards as their only means of communication, and are on ...
3
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1answer
146 views

How (in)secure are cell phones in reality? [closed]

I was recently re-reading an old Wired article about the Kaminsky DNS Vulnerability and the story behind it. In this article there was a quote that came across a little bit exaggerated to me: "The ...
2
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5answers
2k views

Extending Cell Phone Coverage and Reception Strength in Basement - Do Cell Phone Extenders Work?

In our offices we have a very strong cell phone signal above ground, however in our conference room in the basement, Verizon & Sprint have almost no coverage (while AT&T works, it is 1 or 2 ...
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2answers
204 views

Hosting a bunch of sites on a server with Verizon DSL?

I have 50 demo sites (running on .Net 3.5) that are very resource intensive. So shared hosting or using a Virtual Server is not working out. These sites are not production and do not use a lot of ...
1
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1answer
1k views

How Does Droid's Exchange Connector Work?

TL;DR: flow chart http://img2.pict.com/6e/d6/a7/2101822/0/mockup.png I'm curious about how email flows into the Droid handset from my corporate MS Exchange server. If I run through the regular ...