SIP Softphone not working - Verizon Samsung Galaxy S7 Questions & Answers

I have to admit I am a bit out of element here (with Samsung devices), but I am kind of at a loss on where to go for help with this so I thought I would throw this out there...
I have a customer that uses a proprietary app that includes an industry standard SIP softphone client, we have hundreds of these deployed and working fine, with the exception of bone stock Verizon branded Samsung Galaxy S7 (and Edge) devices but only when on WiFi networks, on mobile data it works fine.
EDIT: We discovered the Verizon Samsung Galaxy Note 5 is exhibiting the same behavior as well.
The client software (Mitel MiCollab for Mobile) installs and works normally when on mobile data, but the SIP softphone cannot register to the SIP server on any WiFi network. Take the exact same app and settings to any other device we have tried and it works fine. It is as if when connected to WiFi, something built into the device is blocking the ports used by the SIP phone, we have actually taken one and factory defaulted it, setup email and the client software without installing anything else and it still fails, so it isn't an app that is added by the user that is causing a problem. Other Samsung devices like the S6 and J7 devices work fine, so it is something specific to the S7 & Note 5 series.
Anyone have any ideas here? I have limited access to the device, just figured enthusiasts like XDA users might have some insight into the device.

Related

[Q] Exchange ActiveSync policy wiping Fascinates randomly

I am an Exchange 2003 admin at a company with over 500 devices using ActiveSync across multiple platforms and revisions.
We enabled ActiveSync policies this week, forcing a 4 character password down to the device, with the setting "wipe after x failed password attempts" disabled.
Within 48 hours, 3 users have reported their Samsung Fascinates (and one US Cellular Samsung Mesmerize - which appears to be the same CDMA Galaxy S variant) have randomly reverted to stock. The user was not doing anything in particular at the time, nor did they enter their PIN incorrectly.
Does anyone know if Verizon has acknowledged this issue, or plans to provide a fix? It feels wrong having to ask these users to go buy Touchdown, when every other Android phone works out of the box.
My guess would be that it's an issue with 2.1 not really the fact that it's a galaxy s.
2.2 has better support for exchange AS. Depending on the trust you can place on the user I'd suggest creating a new policy for them that doesn't require the pin but request that they use the pin, until the Galaxy S gets froyo.
I'll do a nandroid backup on my phone and enable the policy for my phone and see if it happens to me, I'm not running the stock kernel though so it could be different for me.
Unfortunately we can't do per-device polices with exchange 2003 without some trickery on a users extended AD attributes. And, since there's no way to identify Fascinate users, they report their AS user agent as 'android', so it's difficult to be proactive until they call in with the problem.
I don't think it's related to all galaxy s variants, plenty of Epic and TMobile Galaxy users are fine, but the US Cellular variant appears to be a direct copy of the Fascinate, also on 2.1update1, and exhibits the same symptoms.
Users are lying. They fat fingered the password or the screen came on in their pocket. I work IT in a company that has about 5k android devices and about 20k of iphone bb and windows phones. The exchange admin is a android enthusiast and we talk often, when they started enforcing wipe policy they were swamped by calls about devices wiping themselves but after users got used to entering the passcode the calls pretty much stopped.
Sent from my SCH-I500 using XDA App
Except we don't set that as part of the policy, as stated in the OP. I can mess up my PIN an unlimited amount of times with no ill effect.
There are threads about this on androidforums as well as the vzw forum, but I can't link with my low post count. I just wanted to come to the place where I knew there was the most knowledge with this issue.
Hmm, I have not specifically tested this, so I don't know if Samsung added this functionality or not, but the stock mail client for Android 2.1, to the best of my knowledge, does not support PIN code passwords. That functionality was added into Froyo by Google. I suppose it's entirely possible that the mail client on the Fascinate is buggy and causing this issue.
I know what you mean about having to tell them to pay for a mail app, but I think they'll be happy about it after the fact, after seeing how much better Touchdown really is. The stock mail client is so bare-bones, it's honestly quite ridiculous. Google really needs to get their act in gear and code a decent, full-featured mail client, because right now the iPhone beats Android at Exchange syncing, even though it also can't hold a candle to Touchdown.

IMAP stops syncing intermittently

Greetings. I am a new user to XDA but a longtime reader and geek who uses and is well familiar with multiple desktop and mobile OS's. I say this because the problem I am writing about is possibly the most confusing I have ever faced. In fact, if it wasn’t happening to me personally I would swear it was impossible, so please read on. I would be grateful for any – any – ideas. I will attempt to describe the problem and my troubleshooting steps as clearly and concisely as possible – but it’s a weird problem so needs some discussion.
PRECIS: Samsung Galaxy S II intermittently loses ability to connect to and sync with IMAP servers, BUT ONLY intermittently and ONLY on one particular mobile network. Much testing has been performed as detailed in this post.
HARDWARE / OS: Galaxy S II originally purchased on contract from Three UK, unlocked, and currently running Android 2.3.4, debranded to XXKG5 firmware and generic CSC XEU.
SIMs USED: Roshan (Afghanistan) pay-as-you-go and AT&T (USA) contract with unlimited international data.
SYNOPSIS: I have good data connectivity (slow EDGE, but generally reliable) from the local Afghan provider Roshan using my PAYG SIM. I am able to set up both of my IMAP accounts, have them log in, sync, send mail, etc, but after an indeterminate amount of time, routinely lose the ability to connect at all. However, all other data services and syncing continue to work fine (web browsing, Gmail, calendar, contacts etc) – only IMAP connectivity is broken. No errors appear, but mail just stops coming. Once this has occurred, the only thing that seems to correct the problem is time – it will eventually start working again, but is by no means reliable. Changing how often the accounts check for new mail has no effect. A change to Wi-Fi restores connectivity to the IMAP servers immediately, but then the problem returns over the Roshan mobile network. Yet, I can swap in my AT&T SIM and all works fine immediately, reliably, and never displays the problem. The IMAP connectivity issue exists only with my Roshan PAYG SIM, and only after some amount of time.
HARDWARE TROUBLESHOOTING: The phone and IMAP have worked fine on multiple networks in multiple countries. In the UK, on 3UK and Orange. In the UAE, on Etisalat and du – all with good HSDPA connections. In Afghanistan, the AT&T SIM connects usually to Etisalat but other networks as well, all with EDGE data where available. (Unfortunately for scientific testing, AT&T does not allow connection to Roshan.) And also in Afghanistan, my PAYG Roshan SIM works fine with everything EXCEPT the IMAP problem. Altogether, it seems the GS2 itself works as advertised.
MOBILE NETWORK (ROSHAN) TROUBLESHOOTING: The exact same PAYG Roshan SIM which causes the problem in the GS2 allows a reliably-syncing connection (and servers automatically detected, BTW) over the same mobile network to the same servers using my old iPhone 3G running iOS 4.2.1. Likewise, my boss has perfect service to these servers using this same network with his Roshan PAYG SIM in my old Nexus One on Android 2.3.4. And, my GS2 does fine on this network for all except IMAP.
ANDROID OS TROUBLESHOOTING: In an effort to troubleshoot a potential glitch in the OS, I have flashed multiple versions. The Roshan/IMAP problem exists on both the 3UK-branded H3GKF4 2.3.3 as well as generic XXKG5 2.3.4. And again, a Nexus One running 2.3.4 on the Roshan network does fine also – incidentally also in my office, so at least theoretically connected to the same cell path.
EMAIL CLIENT TROUBLESHOOTING: In an effort to isolate a fault with the Samsung email client, I purchased and installed Enhanced Email, with both 2.3.3 and 2.3.4 installed. Same results: fine on Wi-Fi, fine with AT&T, unreliable in both clients with Roshan PAYG SIM.
(LACK OF) CONCLUSION: Can it be possible that I have uncovered a ridiculously obscure bug? How can just one data service type (IMAP) be affected on just one network (Roshan) yet all other services are fine, and the IMAP problem does not exist with other SIM’s and/or networks? Is there anything something like a traceroute I could run to see what’s happening to my IMAP requests?
If you’re still reading, thanks for staying with me this far. I’m completely baffled, and frankly, more than a little frustrated that what is meant to be the best smartphone in the world can't reliably get my mail on the network I need it to, while a tired old iPhone and Nexus do so all day long. Any ideas?
Kind regards,
Adam
UPDATE: Did nothing, started working
All --
For the past two workdays, IMAP email has arrived in both the Samsung Email client (set to check every 5 minutes) and Enhanced Email (set to check every 10) on the Roshan mobile network. I have done absolutely nothing to cause this to happen.
Of course I am very pleased all is working as advertised, but the episode has still somewhat tarnished my previously stellar opinion of this phone and diminished my trust in it to a degree. Regardless, I'm glad. If the problem resurfaces, I will repost here.
I suspect the reader will agree that "it just started working" isn't a very satisfying fix, so if someone else experiences a similar issue with IMAP and/or knows more about how it works, I would really like to learn. Feel free to drop me a line on <<[myxdausername] at gmail dot com>>.
Kind regards,
Adam

Tethering on rooted and unrooted Android phones.

Hi.
Firstly I want to put aside all warning about if it is legal or so, focus on technical issue.
I am not new if it comes to networking, that's why I want to expand my knowledge.
Just got new Samsung Galaxy S3 mini, and wanted to try tethering with my sim card.
Got message on web browser in PC and mobile as well:
"Are you using your phone as a modem or personal hotspot?
Reference SIM002
Using your phone as a modem and connecting it to other devices through WiFi or USB to get onto the internet (also called 'tethering'), is not what the plan you're on was designed for. If you would like to speak to someone about tethering options available to you, please call 333 free from your Three phone.
In the meantime if you want to get your phone back to browsing the internet you'll need to turn it off, allow it to reset itself for a few moments, and then turn it on again.
If you're looking for a Mobile Broadband connection, you'll get a better, cheaper and faster experience on one of our Mobile Broadband tariffs or devices. Just go to your nearest 3Store."
I found some threads here on our forum, but no answer how does it work.
As in my phone (Samsung Galaxy S4 Relay) which is rooted it working fine.
Some people say network operator is doing Deep Packet Inspection - maybe, but it looks like rooted device appear for them as not hotspot and not rooted as hotpost.
Am I right? Is rooted phone doing it somehow smarted (e.g. making itself proper router with his DNS point and gate ?)

[Q] Is it possible to use the S5 as a SIP phone over wire (non-wifi,non-mobile)?

I'm strongly opposed to wi-fi and mobile radiation.
However I bought this S5 for taking photos primarily (16MP cam and all) and to test my websites on real smartphones.
So my ISDN phone is about the break and I thought "hey I bought this expensive piece of crap which can't do reverse tethering without rooting it, why not use it as a SIP phone instead of this phone that is about to break and save some money?"
Well I have found that with some Galaxy Pro tabs you're able to buy a USB<->RJ45 adapter, plug it in and use it as a SIP phone client, video calls and all.
Apparently you can't do this with the S5. At least not officially.
Right now my options are: sell it or trip knox and install a custom system. I'm trying to sell it right now but in case it won't get sold I'm stuck with it. (I have found no app that does reverse tethering properly, I have to set it up manually every time and even then some apps won't recognize a connection since neither 3G or wifi is enabled)
So my question is, do any of the current images floating around support a USB<->RJ45 adapter and does reverse tethering work out of the box on one of these images and do they also have a configurable SIP client?

Need Help With Hacker / Malware Removal!!!

I have had a malware/hacker problem with my home computers, network and mobile phones for approximately 18 months. I am hoping that someone with your team will be able to help diagnose and assist in permanently removing the issue as I have not had any success with help from others to date. The malware seems to persist across factory resets and/or firmware flashs. Device details are listed below, at the end of this post.
The phones will randomly download/upload personal content, i.e. files and folders, to cloud accounts and other devices, randomly open and close applications, alter or corrupt files that have been downloaded to the phone, change file location on the devices, alter permissions, block or change root status (if rooted), deny un-root, disallow applications to be installed, removed or function correctly, hijack the wireless/blue-tooth and mobile data capabilities, eavesdrop on phone conversations and access the devices camera and microphone, communicate with other devices, possibly controlling them to a certain extent..
Similar problems exist with the personal computers. Mobile data usage has increased from 5G per month to well over 50G, reaching as much as 100G in a months time. I was forced to change plans with my internet service provider to accommodate data usage of 600G a month from the 300G plan I was on originally, where I only used 1/3 of that or less per month. Lastly, my identity has been stolen multiple times over the 18 month period I have had this problem. I am concerned the infection resides at the hardware level but I do not know how to confirm if that is possible with Android devices and don't want to purchase anymore new device as I have previously tried with 6 desktops, 4 laptops, 5 smartphones, 5 routers and 4 modems.
I have reached out to the local authorities, computers repair shops and worked with some of the top names in the anti-malware industry, only to be either turned away with disbelief or the lack of capability to do something to resolve the problem. Any help is greatly appreciated. Thank you.
Device List
Mobile Phones:
- Samsung Galaxy S8 Plus (currently in service with Verizon)
- Samsung Galaxy S7 Edge (currently in service with Straight Talk, previously Verizon)
- Samsung Galaxy S7 (not in service, original service provider: AT&T)
- iPhone 7s (in service with Straight Talk, previously Verizon)
* If necessary, please inquire about additional computing and networking equipment.
lol
Sounds like the easiest solution is to take a hammer to everything and start fresh.

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