No Service, Network or 3G dropping, Call Failed Problems - List here

Dear Apple,
We are apparently very numerous suffering from this problem and can't use our brand new precious phones properly.
Please hear us and fix this issue as soon as possible.
Below is the link for complaints.
http://www.apple.com/feedback/iphone.html
Thanks!

The situation resolved on its own 24 hours later.
Must have been an issue with the AT&T network in this area...

Similar Messages

I have call fail problem with my iphone 4 , i can't make calls

I'm facing the problem of call fail and i can't make calls from my i phone , but i can recive calls & data also , only the problem is for the outgoing calls.

ejcampbell wrote:
Strange that a 10-12 year old dumb phone significantly out perfromed the 4S with a marginal signal is little disquieting.
Not really... that ancient EDGE only phone will stop working as AT&T sunsets their EDGE network over the next few years.
Some phones are simply better at picking up weak signals than others.

Viber call failed problem

When i call on viber through wifi it rings only once before it says call failed with all contacts.Why?

Hi !
The issue you are experiencing may be due to internet connection issues.
Please make sure you have a strong Wi-Fi, 3G or 4G signal.
For further information, please follow the link: http://bit.ly/19QCPOf
Have a great day!
Viber Support Team

CaLL Failed problem

Hi, I have a plan with unlimited calls to US and Canada, and about 20 minutes ago I started getting CALL FAILED every time I try to call a phoneline or cell, please help!!!!

Had the same problem. Rebooted Skype. Couldn't log in. Went to support page and entered my e-mail. Page went "sad face" and said "technical difficulties."

Iphone 5 calls failed

Hi
Has anyone experienced problems with their iphone 5? For some reason I keep getting "call failed", problems appears to happen during phone call converations and most of them appear to happen when you try to dial a phone number, press call and the phone returns a message back to say call failed.
I've checked with the network provider and I have a 4 bar signal strength, only to be told that most of the time my phone has dropped the call and not the network. Even if you see a signal bar on the phone, does not mean to say your connected to the network provider. I have a call logged with Apple and my Network provider and I'm surprised to see that the two providers are not welling to bang there heads together to fix the problem. Apple support have been helpful to a point, my call has been escalated to Apple's Engineering Team but they dont even know how to fix it. Instead I'm getting useless questions being asked.
It appears to me that the same signal problem with Apple's previous handset still exists on there iphone 5. I've checked with various friends who are on different networks and they too have the same problem. One friend had already started to look at Samsungs S3 as it appears to have none of these issues.
I've lost faith in Apple's abaility to resolve this issue. I also decided not to purchase iPad with 3G as a result of this issue.
If you have any ideas on how to resolve this issue, that would help!
PS Does anyone know how to go about making logging a complaint with Apple?

So here's an update from my situation. Hope it helps some folks.
My wife and I had been having some intermittant "call failed" issues on T-Mobile with both my iphone 5 and her iphone 4s. After speaking with T-mobile, apparently they were "refarming" our network area switching out cell tower frequencies to get ready for the new iphone rollout on T-mobile (in early April). They suggested we turn off 3G on our iphones, until all the tower updates take place. . .
We did . . . That allowed us to make phone calls again, but we were stuck on Edge. Not a long term solution, but it would have to do for the moment.
THEN-- The T-mobile carrier update came out for the iphone 5 in mid-april, and once again I started having intermittant fails. This time, I lost the option to turn off 3G (due to the carrier update), so I was stuck wiht a phoen that basically did not work at my home . . . Kapt getting "no service".
So after alot of researching forums, I determined that the problem was BOTH a Handset and carrier issue . . . The original handset I bought was an unlocked iPhone 5, which worked fine on T-mobile when I bought it in December. But as soon as T-Mobile started gearing up to carry the Iphone officially, they started making chancges in their frequency bands . . . Namely,the 1700 mhz aws band. . . . The new iphone 5 that T-mobile began selling in April could pick up the 1700 mhz band. The iphone 5 sold in December could not . . .
And that was the reason for the call fails . . . My phone was jumping back and forth between the 1900 mhz 3G freqeuncies, and Edge netweork frequencies, constantly toggling back and forth, searching, and then going "no service." And it was especially bad at my house . . . apparently because all the towers right around me were being refarmed to accomodate the 1700 band, and my iphone was simply unable to pick that up . . .
So here's what I did.
I went to Apple. I explained the problem. I told them I wanted to exchange it for a new one. They tried to get me to try some software troubleshooting first, but I was adamant about receiving a new phone, and they finally agreed. I made sure that the new phone I was getting was one that was capable of picking up the 1700 and 2100 aws band frequencies . . .
And the problem was solved!!!
So far there is still no solution for my wife's iphone 4s, since there are no iphone 4s phones capable of picking up those frequencies. Right now we're just keeping the 3G off, and waiting. Hope this post helps others with similar T-mobile, unliocked iphone 5 issues.

After update to 5.1 iPhone 4 called failed during calls

So, after I updated to ios 5.1 my iPhone 4 has some problems I never kinda seen before. I own it for more than a year . While at home or any other area, good signal,has a bumper, while speaking with friends I get the Called failed problem. Tried reset network settings, even I restored the firmware ... same . Happens a few times a day..

Make sure the time and date ate correct then go to
Settings
Phone
Caller id (make sure it's on)
Done

I have iPhone 4s 8.1.1. Call failed

Hello i have iPhone 4s. 8.1.1 and i am facing call failed problem after 3-4 minutes and some time cant make any call for 1-2 mint plz give me any help to fix it out

Welcome to the community: No Service...after iOS updating to 8.1...?

Thanks this was very useful.. I have a brand new iphone 4s unlocked version from singapore and I am having the same problem constant network fluctuations, no service, call failed, invalid sim, sim failure, bars fluctuating from 5 - 3 - 2 - 1, no signal/ba

I have a brand new iphone 4s unlocked version from singapore and I am experiencing constant network fluctuations on my iphone , no service, call failed, invalid sim, sim failure, bars fluctuating from 5 - 3 - 2 - 1, no signal/bars searching etc... Ifeel miserable after trying out all the options changed multiple sims, tried multiple carriers, restored the phone back and have set-up as new device but the problem does not get solved... its is so frustrating that after investing on a world's most expensive phone you cannot enjoy the calling features which the phone offers which is the main thing you own the phone for.. Rest of the things are working.. The funniest part I am not able to make calls or receive calls but can access the internet.. I have tried every possible thing and really very frustrated with this iphone of mine...I hope the problem gets solved.. would anyone have any solutions to this problem.. Does it mean one should never update software as I hear that after updating to IOS.5.1 the problem has started coming and same has been with there.... Apple says its a hardware failure which is very difficult to digest as sometimes I get 5 bars and able to make and receive calls but 95% of the time I am unable to. If anyone has any solution I will be very happy if he or share can share the same. Many thanks. its so disgusting to experience this on top of this apple does not support global warranty for the phone as you need to go to the country from where you bought the phone for replacement.. Truly sad state of affairs.. very very very dissappointing.

Have a look at this it might help
http://support.apple.com/kb/TS4148

I have the problem of calls getting failed.. Black Iphone 4S 16gb IOS 6.1.3. O2 Network. Airtel India. I have full bars of signal but cannot make calls. Goes to "No service" then to "searching". I constantly get "Call Failed" when making calls.

I have the problem of calls getting failed.. Black Iphone 4S 16gb IOS 6.1.3. O2 Network - Airtel India.
I have full bars of signal but cannot make calls. Goes to "No service" then to "searching".
I constantly get "Call Failed" when making calls.
What could be done to solve the problem?

Try settings/general/reset/reset network settings. If that does not do it then contact your carrier

Iphone 4 constantly dropping calls or "call failed"

I've been having nothing but trouble the past couple weeks with dropping calls or getting the "failed call" showing up when trying to make a call. It happens more times than not and i spoke with Apple today and was told that after you try all the resets and restore options it should be fine. If that doesn't work, its more than likely a SIM card issue and needs to be cleaned or replaced. I did all the restore and backup and all the other garbage they advised me to do, and still did not work. Took the SIM card out and im not sure if its supposed to sparkle in the light, but its pretty **** clean. Re-inserted it, and still dropping calls or "call failed". Next option is getting a new SIM card tomorrow and i'll update what i find out.
Previously, in July, some moron from Canada was beaking how its a service issue and he's on Rogers network, blah blah blah and he's never dropped a call and its superior to AT-T and mentioned something about how all the ppl would have no trouble if they were on the Rogers network.
Well i'm from Canada and work with 2 other ppl, surprise, from Canada who are having the same problem with the iphone 4........its not a network thing whatsoever, because ppl on Telus and Rogers are having the same problem. Im assuming he was from Toronto where the center of the universe is and he was basically just being an idiot, so for that moron, i apologize to ALL who are having issues with the iphone 4 and hopefully Apple gets their act together and solves this issue!!

Hey everyone, I think I finally got the solution for this. It appears to be a NETWORK ISSUE with the phone provider. I am a Telus subscriber and after speaking to a cool tech guy from Calgary named "Corey", he performed the following task:
He told me he had to reset 4 settings on the network for my account. A few of which were under something called "STF viewer" "PLMN" and "PRL"...
Aftewards, I had to go to my iphone: General > Reset > Reset network settings
I am now able to complete phone calls (and apparently my reception sounds better to my call recipients/callers too). The problems is not related to a "faulty device" or "something" you did... If the problem happens again, I'll call my provider and have them investigate the ticket further as it could be a bigger network issue (with GSM) but chances are it just requires a simply settings reset on the backend of your provider's data support team.
After doing the reset, all I had to do was reconfigure my wifi password. No other settings were lost. (and more importantly, I didn't have to re-restore my iphone, didn't have to go to Apple and sound like one of those "iPhone 4 vs HTC cartoon characters" and didn't have to yell like a child to anyone. Just be cool when you call your provider's tech people, these guys are good hard working people and will help you and will have a better chance at success if they empathize with you and don't feel annoyed by you (I'm in IT, I know how it is).
I was also told that if I had to call back and if they had to reinvestigate, the next steps would probably involve having my SIM card changed but based on the previous tech's experience, it would be highly unlikely. I will update you further should I encounter any further issues. Just don't be hating on the iPhone 4 as most people do coz it is a sweet device if you can understand the tech specs behind the underlying issues.
Hope this helps you guys and anyone else who got frustrated by this problem!

Dropped calls and no service in my house...why am I even paying a phone bill?

I've been a Verizon customer for probably around 6 or 7 years now. I've had plenty of different devices and was always happy with my phone. A few years ago, service started to get horrible in my house. I would barely get service and my phone would drop calls. I have spent hours over the past 2 years on the phone with reps. Some were very helpful, and some were very frustrating. I have put in service tickets and even changed out my phone to try to get better service. Let me also note that AT&T customers get perfect service inside of my house. I don't even want to hear the excuse that Verizon doesn't guarantee service inside of a building due to building materials. The last time I checked, I didn't rebuild my house in the past few years with new materials. I use my cell phone for business when I'm at home, so it is extremely important that it works inside my house. I put my most recent service ticket in almost 2 weeks ago and there is STILL no resolution. I also won't accept if the only resolution is me buying a network extender.. I'd rather pay an early termination fee and leave before I'd ever spend money on another Verizon device. I have had 2 reps in the past week tell me that they would call me back and I never hear anything. I also have been told that they would resolve it by a certain date, only to find out that now they are saying it's going to stay open until they can figure it out. I rely on my phone for work now more than ever since I recently starting working from home, so how can I accept the fact that I am waiting around and paying for a phone that doesn't work when I need it the most? For all of my trouble, they offered me a $20 credit on my account. I shouldn't even use the word "offered" because I was the one who mentioned that I should be reimbursed for my time. I'm so sick of wasting my time on the phone and I am truly disgusted with Verizon. As a long time customer who has spent thousands of dollars over the year paying for Verizon service, I would expect to be treated much better than this.

I am not in the same boat, Verizon works absolutely everywhere I go and I am super happy with the service. If the service started not working however, and I got no resolve, I would just cancel it and switch providers. No point in paying for service you can't use, especially where you live.

We have had Verizon Wireless service since 2007. We have 6 lines on our account. Unfortunately in 2012 when I (903.647.0073) upgraded from the iPhone4s to the iPhone 5 I started having reception problems. I started having dropped calls in my home. I had t

We have had Verizon Wireless service since 2007. We have 6 lines on our account. Unfortunately in 2012 when I (903.647.0073) upgraded from the iPhone4s to the iPhone 5 I started having reception problems. I started having dropped calls in my home. I had to go outside to get reception without dropped calls. I was told that because of metal in my home I would have to purchase a Network Extender for $250. And we HAVE not metal in our home. AND our other lines all work fine. I felt this was ridiculous. We already pay $350+/month for service and I should NOT have to purchase additional equipment for a service that I already pay for. The manager of our local store at the time gave us at no cost a Samsung Network Extender. It worked beautifully until about a month ago. I went to our local Verizon store and was told that I would have to purchase an extender. THIS is RIDICULOUS. We have been loyal customers for over 7 years and have been very satisfied with our service. Unless this issue can be resolved without purchasing an extender we will be switching our service as our lines come up for renewal. I regret this as we have been very happy with our service. But we should NOT have to purchase anything extra for one line that will not get good reception. Again, we pay $350+/ month for a service that does not work properly, simply RIDICULOUS! Currently the "sys" light flashes red (slow) and the GPS light remains red. Please help this very frustrated customer.

Regardless with what carrier your with you might have the same issue, My recommendation would be to get a router that will help you with viewing live traffic and keep a tally of your usage and any device connected to your internet connection. You can go with the peplink balance 20 and be able to look at your traffic by the hour, daily, weekly, monthly or yearly. Look for trends, see what computers or devices are doing what I attached a screen shot so you can see an example of mine. You can purchase the router at 3gstore
http://i45.tinypic.com/6zc674.jpg

I have been a customer with Verizon, since 1996. Recently, my husband has been added onto my account. We have both been experience drop calls. My husband contact Tech support for over 2 weeks. We were pretty upset to be paying a lot of money for a service

I have been a customer with Verizon, since 1996. Recently, my husband has been added onto my account. We have both been experience drop calls. My husband contact Tech support for over 2 weeks. We were pretty upset to be paying a lot of money for a service that didn't work. Verizon advised us that would upgrade both of our phones (to see if that solved the problem). Ok...this is where Verizon has forgotten customer service rules. He order 2 phone...one for himself, one for me. 1st the wrong address on the package..Fedex couldn't deliver...2nd...missing condo number Fedex couldn't deliver again...(2nd call to Verizon)...3rd package was finally deliver with 1 phone...missing my phone. Contacted verizon rep...reorder my phone again..but sorry we cannot give the same price as quoted on 21April...even though...its our mistake...Ok...Ok..what a surprise..but we can do this...after 65 minutes...found a price that was a little bit more...fine...just order the phone....I reordered phone on 28April...on the April 29...no email..so I can Verizon for the 4times in a few days..sorry your order was delay due to our Fraud dept. OK...talked to fraud dept...ok..account is good..will release phone and ship. OK...Next day, no email with deliver confimation. Contact Verizon 5 times now...sorry..your order was cancelled...YES...cancelled again...2nd time now...but we can reorder...OK...sorry but we cannot honor that price that was quoted..really...agent messed up...again...but we can do this for you....I don't understand...your mistake...ALL the times...
Strange ...how my order gets cancelled twice by Verizon's mistake....yet you cannot honor prices that your agents quoted!!!
I didn't reorder the phone....I cannot in good faith same with a company that does not stand behind their own mistakes...and worse...they make the poor customer pay for it...
I will not be renewing my contact...its time to Cricket Wirless...which my sister-in-law loves for half the cost....

I hope that you aren't complaining about dropped calls INSIDE your condo because no amount of switching or upgrading devices will solve that.
VZW will not guarantee service inside of any structure. There are just too many factors. If the problem is inside then you might want to look at one of the following:
1.) Network Extender (may cause issues for others in a condo or apartment style setting)
2.) A Google Voice Number (Free with a Gmail email address), downloading Google Hangouts Dialer and forwarding your calls to the GVN so that you can make and receive calls over Wi-Fi.

Event ID: 5014, 5004 The DFS Replication Service is stopping communication with partner / Error 1726 (The remote procedure call failed.)

I'm replicating between two servers in two sites (Server A - Server 2012 R2 STD, Server B - Server 2008 R2) over a VPN (Sonicwall Firewall). Though the initial replication seems to be
happening it is very slow (the folder in question is less than 3GB). I'm seeing these in the event viewer every few minutes:
The DFS Replication service is stopping communication with partner PPIFTC for replication group FTC due to an error. The service will retry the connection periodically.
Additional Information:
Error: 1726 (The remote procedure call failed.)
and then....
The DFS Replication service successfully established an inbound connection with partner PPIFTC for replication group FTC.
Here are all my troubleshooting steps (keep in mind that our VPN is going through a SonicWall <--I increased the TCP timeout to 24 hours):
-Increased TCP Timeout to 24 hours
-Added the following values on both sending and receiving members and rebooted server
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
Value =DisableTaskOffload
Type = DWORD
Data = 1
Value =EnableTCPChimney
Type = DWORD
Data = 0
Value =EnableTCPA
Type = DWORD
Data = 0
Value =EnableRSS
Type = DWORD
Data = 0
---------------------------------more troubleshooting--------------------------
-Disabled AntiVirus on both members
-Made sure DFSR TCP ports 135 & 5722 are open
-Installed all hotfixes for 2008 R2 (http://support.microsoft.com/kb/968429) and rebooted
-Ran NETSTAT –ANOBP TCP and the DFS executable results are listed below:
Sending Member:
[DFSRs.exe]
TCP    10.x.x.x:53            0.0.0.0:0
LISTENING       1692
[DFSRs.exe]
TCP    10.x.x.x:54669
10.x.x.x:5722          TIME_WAIT       0
TCP    10.x.x.x:54673
10.x.x.x:5722          ESTABLISHED     1656
[DFSRs.exe]
TCP    10.x.x.x:64773
10.x.x.x:389           ESTABLISHED     1692
[DFSRs.exe]
TCP    10.x.x.x:64787
10.x.x.x:389           ESTABLISHED     1656
[DFSRs.exe]
TCP    10.x.x.x:64795
10.x.x.x:389           ESTABLISHED     2104
Receiving Member:
[DFSRs.exe]
TCP    10.x.x.x:56683
10.x.x.x:389           ESTABLISHED     7472
[DFSRs.exe]
TCP    10.x.x.x:57625
10.x.x.x:54886         ESTABLISHED     2808
[DFSRs.exe]
TCP    10.x.x.x:61759
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61760
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61763
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61764
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61770
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61771
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61774
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61775
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61776
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61777
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61778
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61779
10.x.x.x:57625         TIME_WAIT       0
TCP    10.x.x.x:61784
10.x.x.x:52757         ESTABLISHED     7472
[DFSRs.exe]
TCP    10.x.x.x:63661
10.x.x.x:63781         ESTABLISHED     4880
------------------------------more troubleshooting--------------------------
-Increased Staging to 32GB
-Opened the ADSIedit.msc console to verify the "Authenticated Users" is set with the default READ permission on the following object:
a. The computer object of the DFS server
b. The DFSR-LocalSettings object under the DFS server computer object
-Ran
ping <var>10.x.x.x</var> -f -l 1472 and got replies back from both servers
-AD replication is successful on all partners
-Nslookup is working so DNS is working
-Updated NIC drivers on both servers
- I ran the following to set the Primary Member:
dfsradmin Membership Set /RGName:<replication group name> /RFName:<replicated folder name> /MemName:<primary member> /IsPrimary:True
Then Dfsrdiag Pollad /Member:<member name>
I'm seeing these errors in the dfsr logs:
20141014 19:28:17.746 9116 SRTR   957 [WARN] SERVER_EstablishSession Failed to establish a replicated folder session. connId:{45C8C309-4EDD-459A-A0BB-4C5FACD97D44} csId:{7AC7917F-F96F-411B-A4D8-6BB303B3C813}
Error:
+ [Error:9051(0x235b) UpstreamTransport::EstablishSession upstreamtransport.cpp:808 9116 C The content set is not ready]
+ [Error:9051(0x235b) OutConnection::EstablishSession outconnection.cpp:532 9116 C The content set is not ready]
+ [Error:9051(0x235b) OutConnection::EstablishSession outconnection.cpp:471 9116 C The content set is not ready]
---------------------------------------more troubleshooting-----------------------------
I've done a lot of research on the Internet and most of it is pointing to the same stuff I've tried. Does anyone have any other suggestions? Maybe I need to look somewhere
else on the server side or firewall side?
I tried replicating from a 2012 R2 server to another 2012 server and am getting the same events in the event log so maybe it's not a server issue.
Some other things I'm wondering:
-Could it be the speed of the NICs? Server A is a 2012 Server that has Hyper-V installed. NIC teaming was initially setup and since Hyper-V is installed the NIC is a "vEthernet
(Microsoft Network Adapter Multiplexor Driver Virtual Switch) running at a speed of 10.0Gbps whereas Server B is running a single NIC at 1.0Gbps
-Could occasional ping timeout's cause the issue? From time to time I get a timeout but it's not as often as the events I'm seeing. I'm getting 53ms pings. The folder
is only 3 GB so it shouldn't take that long to replicate but it's been days. The schedule I have set for replication is mostly all day except for our backup times which start at 11pm-5am. Throughout the rest of the time I have it set anywhere from
4Mbps to 64 Kbps. Server A is on a 5mb circuit and Server B is on a 10mb circuit.

I'm seeing the same errors, all servers are running 2008 R2 x64. Across multiple sites, VPN is steady and reliably.
185 events from 12:28:21 to 12:49:25
Events are for all five servers (one per office, five total offices, no two in the same city, across three states).
Events are not limited to one replication group. I have quite a few replication groups, so I don't know for sure but I'm running under the reasonable assumption that none are spared.
Reminder from original post (and also, yes, same for me), the error is: Error: 1726 (The remote procedure call failed.)
Some way to figure out what code triggers an Event ID 5014, and what code therein specifies an Error 1726, would extremely helpful. Trying random command line/registry changes on live servers is exceptionally unappealing.
Side note, 1726 is referenced here:
https://support.microsoft.com/kb/976442?wa=wsignin1.0
But it says, "This RPC connection problem may be caused by an unstable WAN connection." I don't believe this is the case for my system.
It also says...
For most RPC connection problems, the DFS Replication service will try to obtain the files again without logging a warning or an error in the DFS Replication log. You can capture the network trace to determine whether the cause of the problem is at the network
layer. To examine the TCP ports that the DFS Replication service is using on replication partners, run the following command in a
Command Prompt window:
NETSTAT –ANOBP TCP
This returns all open TCP connections. The connections in question are "DFSRs.exe", which the command won't let you filter for.
Instead, I used the NETSTAT command as advertised, dumping output to info.txt:
NETSTAT -ANOBP TCP >> X:\info.txt
Then I opened Excel and manually opened the .TXT for the open wizard. I chose fixed-width fields based on the first row for each result, and then added a column:
=IF(A3="Can not", "Can not obtain ownership information", IF(LEFT(A3,1) = "[", A3&B3&C3, ""))
Dragging this down through the entire file let me see that row (Row F) as the file name. Some anomalies were present but none impacted DFSrs.exe results.
Finally, you can sort/filter (I sorted because I like being able to see everything, should I choose to) to get just the results you need, with the partial rows removed from the result set, or bumped to the end.
My server had 125 connections open.
That is a staggering number of connections to review, and I feel like I'm looking for a needle in a haystack.
I'll see if I can find anything useful out, but a better solution would be most wonderful.

No service/searching/call fails

Have a 4s -was working fine. But now constantly searching for service or 1-2 dots and calls fail. Have done network reset. Wi-fi fine. Wifes phone has 3-4 dots of service in same location

On talking with tech in Ky he suggested cleaning my sim card with pencil eraser which made no difference. On further search on his part he noted that the issue was a tower which I was locked into. The tower was malfunctioning and when repaired my service returned to normal.

No Service, Network or 3G dropping, Call Failed Problems - List here

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