Phone Roaming

I can't believe apple has overlooked one of the most basic features of any phone, the ability to select networks, I live in a border city and am often pestered by the signal from Mexico, the other day my iPhone latched on to the mexican cellphone companies signal and wouldn't let go. I was without service for two hours, ATT can only fix it by calling customer service and having them ping the phone to come back to the ATT towers. Please please apple fix this in the next firmware update!

there is a carrier list in settings, I saw it once for about a min then it disappeared again. Not sure what makes it appear though....

Similar Messages

Why won't my phone roam consistently in Mexico?

My iPhone 5 keeps searching for a signal (in Mexico) after working fine earlier today and yesterday. Have reset network settings and restarted....issue remains. Help!

Call Verizon and have them straighten it out. I had a similar problem about 3 years ago and it took Verizon and AT&T network technicians to fix it. Had something to do with how my number (originally ported from Cingular/AT&T) was provisioned and how Verizon and AT&T handed off text at a certain point/server. I provided addresses and showed them that the problem did not happen for my son's identical phone.

How to check on 701 whether that phone is roaming?

Hi,
Please tell me how to check whether my phone roaming or not.
If not, it would me better to have any app or update of software to have this important function.
Thank you.
-------------------If this post helped you, click on accept as solution.------------------
-----------------------------Appreciate by clicking on white star.----------------------------

Check the value of system variable sy-batch. if value of it is 'X' that means program is running in background and if value is ' '(blank) that means prog. is executing in foreground mode.
Regards,
Joy.

Layer 3 roaming issue

Hi all,
i have two wireless networks with two subnet (see the attached drawing) , all controllers run v4.2 access points type is 1020 .
the first network in hall 1 have 4 wlc in subnet 172.16.40.X , the security is WEP key for wireless phone
the second network in hall two have one WiSM in subnet 172.26.40.Y the security is WEP key for wireless phone also
all controllers and WiSM in same Mobility group .
the issue is ,when wireless phone roaming from hall one to hall two or from hall two to one it dropped the connection and not working
please advice

Examples :
WLC1 has management as 192.168.1.2
WLC2 has management as 192.168.1.3
WLC1 has the SSID "employees" linked to interface "emp_int" which has ip 192.168.50.2
WLC2 has the SSID "employees" linked to interface "employee_int" which has ip 192.168.80.2
In this case, we have layer 3 roaming. Meaning that normally the client would need to change its ip from 192.168.50.x to 192.168.80.x but thanks to mobility anchoring mechanism, the WLC2 forwards all traffic back to WLC1 so that the client can keep its ip address in 192.168.50.x
If the situation was that both employee interfaces were in the 192.168.50.x on both WLCs, then we would have layer 2 roaming. Meaning the client entry is simply moved to WLC2 and WLC2 handles all the traffic. WLC1 has nothing to do anymore with this client.
conclusion : the ip addresses of the management interfaces don't matter to decide if it's layer 2 or 3 roaming, it's the ip of the dynamic interface of SSID which matters
Nicolas
===
Don't forget to rate anwers that you find useful

Roaming between Flexconnect groups for scaling

I have a customer that needs flexconnect at each of his 10 locations to access local servers and printers. The customer has a pair of 5508 WLCs running 7.6.130.0.
While the customer currently has 25 and under AP count per site, they are considering an expansion to 50 - 60 per site.
We are considering the mobility agent on 3650/3850/4500 switches, but the multi-hop restriction will drive the cost too high.
What is the downside for defining multiple flexconnect groups per site?
The customer is also considering Unified Communications. For example, would the voice RTP stream on a wireless IP phone roaming between APs on different flexconnect groups appear to be seamless?

If you plan on utilizing any real-time applications such as voice, you would not want these devices to be roaming between FlexConnect Groups. There will be a full re-authentication of the client; with the exception of OKC capable machines, which "may" roam more cleanly. This means some standard data clients may perform a fast roam, or at least not notice much of a hiccup even with a full re-auth.
In either scenario, you would want to make sure this is NOT a L3 mobility roam (ie. FlexConnect WLAN/VLAN mapping to different networks). This will cause major problems for all your clients as they will most likely end up talking on the new VLAN with their old IP address.
Mobility / Roaming Scenarios
WLAN Configuration
Local Switching
Central Switching
CCKM
PMK (OKC)
Others
CCKM
PMK (OKC)
Others
Mobility Between Same Flex Group
Fast Roam(1)
Fast Roam(1)
Full Auth(1)
Fast Roam
Fast Roam
Full Auth
Mobility Between Different Flex Group
Full Auth(1)
Fast Roam(1)
Full Auth(1)
Full Auth
Fast Roam
Full Auth
Inter Controller Mobility
N/A
N/A
N/A
Full Auth
Fast Roam
Full Auth
(1) Provided WLAN is mapped to the same VLAN (same subnet).

Galaxy Note 2 roaming

I live in central NC and my galaxy note2 is constantly roaming. Can restart the phone and it will reset for a short period of time then right back to roaming. Is there anything I can do to stop it?

I can imagine how frustrating it would be to constantly have your phone roaming sshort. Let's get this taken care of. How long have you had the Note II? Has it been roaming since you got it? Please try removing SIM card for 30 seconds and then restart phone. Also, you can change settings. Try going to Menu> Settings> More Settings> Mobile Networks> Network Mode> select LTE/CDMA. Let's see if this helps. Please keep us posted.
Thanks,
VanessaS_VZW
Follow us on Twitter @VZWSupport

7925g - roaming issue using a band only

We have a small deployment of 7921g and 7925g phones. The 7925g phones while stationary when set to use the a band roam (while idle or in call) to distant APs with much weaker signal strength. That of course impacts negatively the quality of the call. The 7921 phones do not exhibit this behavior.
Additional data:
Access points and coverage:
Meraki MR14 & MR24 set to select their own channels (channel spreading) and auto reduce power according to the RF environment to avoid co-channel interference. Currently the APs transmit on channels 1, 6, 11 and 36, 44, 149 and 157.
Coverage has sufficient overlap for seamless roaming but it is really irrelevant in this case since the 7925 phones roam while stationary.
Phone firmware:
Initially 1.4.2 now the 7925s run 1.4.2ES.1
The phones have been configured to continuously update the AP list (CUCM setting) and channels on which the APs do not transmit have been excluded (through the web interface of the phones)
SR 618866317

Since you are seeing unexpected roaming and you believe that is the reason for the choppy audio, we need to gather phone logs as well as correlated WLAN sniffer traces.
The phone should have Kernel, WLAN Driver, WLAN manager set to DEBUG level.
You can increae the # of files and file size to 10 /250 kb or enable syslog via USB.
Be aware that with this increased logging, audio quality can be impacted, but since we are troubleshooting unexpected roaming it should be ok.
Just want to be sure you don't enable this debug level on many phones / production user phones, where we make things worse.
Once you get the logs, attach them to the case by replying to your SR thread with [email protected] copied.
For the comment about 7921 and 7925 RSSI, they are different chipsets (although same vendor) and different antenna type.
So will not be 1 to 1 exactly.
Will need to ensure that the 7925 downstream RSSI is -67 dBm or better as well as the upstream signal (from 7925 to the AP).
But since the issues don't seem signal related, let's not focus here, but instead focus on the unexpected roams.
So yes we need all 3 modules enabled at DEBUG level as mentioned above.
Get that info and attach it to the SR and let your assigned TAC engineer know.
I already reached out to the TAC engineer assigned to your case.

Disable "Allow automatic sync while roaming " in iOS5?

Hi! I would like to know in detail what happens if i disable "Allow automatic sync while roaming " in iOS5?

According to what I can find, it prevents activesync from automatically synchronizing mail, calendars and contacts when the phone roams onto a different carrier network. It can still be synced, but it must be done manually by the user. The intent is to help control data roaming charges.

ISSUES 7921G roaming whit push to talk

Hello,
We have a deployment with many Cisco AP around 100, the AP are closer each other,This AP only works with 2.4 radio, because the radio of 5 don´t have anntenas to work so the only radio to cover the deplyment is the 2.4 Ghz.
The network was designed and installed by another company, they mounted 20 Aps to cover offices and 80 Aps to cover a warehouse mounted higt around 65 feet and there are separates each other around 41 feet.
I am having issues with 7921G phones roaming through a 802.11b/g, The phones do not seem to be moving on to nearby APs at the right time therfore alowing the call to degrade and drop out, I was hoping someone could give me some tips on WLC configuration and AP power to optimize the system already installed. I am really limited as to the amount and location of the APs
This issue it´s more when use the 7921G the push to talk ficture
The WiFi network has plenty of APs installed. It certainly has -67dbm coverge in all areas and also a more than of 20% overlap.
7921G ver 1.3.2
WLC 4400 ver 7.0.116.0
CCM ver 4.0
APs: AIR-LAP1242AG-N-K9
Thanks you
XU

Hi,
I Used the tool, but the only change it´s recomended it´s in the 802.11a network but this frecuency its not possible, because the 802.11a network was disabled.
I upgrade WLC firmware to the 7.0.235.0, and the data rate there are available are 9 for mandatory and the other higher data rates are supported.
The security for the phones are wep, and the multicast mode are Unicast, becuase if I configure the multicast in Multicast mode don´t work with the PTT.
I think in the Wired LAN dont have IP multicas routing. But I cant touch the LAN network.
Best Regards

Enterprise Web Filtering solution

We just changed our
network topology so every office directly connects to the internet instead of pushing all traffic through HQ.
We are using an on premise
Websense server, but now that all remote offices directly connect to the internet we want to look for different options.
The Solution needs the ability:
1 – Good reporting for user web activity is a must.
2 - Need to be able to support 500 - 1000 users
3 - Must support Citrix servers
4 - Needs the ability to whitelist sites like our cloud video
conference system(Blue Jeans)
We have 20 offices, and don't
want to put an appliance at every location.
Thanks for any suggestions
This topic first appeared in the Spiceworks Community

I agree with Stephen/Steve's post. Get someone to do the design, pre-installation survey, implementation and post-implementation survey. There are alot of things that can go wrong and there are misconceptions that need to be ironed out. For example:
There are 50+ offices from 20-600 users.
Ok. There's no biggie with the statement above. But it will not "gell" with the statement below:
User should be able to roam everywhere.
Alot of executives believe (incorrectly) that WLAN roaming and mobile/cell phone roaming are synonymous. This perception needs to be taken with caution.
You have 50+ offices. Ok, I get this. Now unless you are going to tell me that the "open space" between each offices will be covered with your WLAN then there's no such thing as "roaming". You will get the feeling of "roaming" when you are, for example, in an office with wall-to-wall wireless and you walk from one end of the building to the opposite end and you are still continuously on the wireless. This is possible because your client was able to continuously connect to the same WLAN and the WLAN handed your client from one WAP to another.

IPhone 5 Calls and Texts Failing

I have been having this issue since upgrading to an IPhone 5. This problem is especially frustrating as my husband and daughter use the same carrier (AT&T) and have an Iphone 5S and an Iphone 4S respectively with no problems. My problem seems to have been exacerbated by the latest update (7.1.2) and affects me the most in or near my home or other rural areas. I can literally sit and watch them talk away (even if they call the same person I was talking to) but I repeatedly drop to Edge or get "Call Failed" which is what leads me to believe it is my phone. I also have to make multiple attempts to send a text message because they often fail also. I have done everything Apple has asked, including sending them diagnostics info (where the customer service rep claimed she didn't see any of my dropped calls). I recently "reset the phone as new" and not from a backup, again with no results (and now no contacts either, woo hoo!). I have also had my SIM card replaced and reseated twice. I turn LTE off and Data Roaming off as some forums have suggested. AT&T has confirmed my account is set up correctly. I finally started looking into the problem myself, or specifically, looking for the differences between my phone and the others. The articles I found regarding the first Iphone 5's released is that they did not support the 1700 MHz cell phone frequency used by T-Mobile. At first I figured that didn't have anything to do with me but when I read more about the people who'd tried to use the first Iphone 5 on T-Mobile their symptoms were the same: multiple call failures and switching straight to Edge (which is 2G) instead of 3G. I looked at the coverage area maps in my area, and, surprisingly, T-Mobile's signal is stronger near my house than AT&T. My guess is my family's phones roam to T-Mobile while mine stays with AT&T's lower 2G signal and then drops. Of course Apple quietly stopped making the Iphone 5 that didn't support 1700 MHz/T-Mobile (Oops!). I am having trouble posting the link here but here is one of the shorter articles about it:
As you all know by now, T-Mobile will begin offering the iPhone 5 officially from Friday this week (April 12). But, some of you will already have your own iPhones, and could be tempted to switch to the carriers attractive price plans. In years gone by, iPhones haven’t supported the Magenta-flavored 3G/HSPA+ bandwidths, leaving iPhone wielding Tmo customers stuck on a slow EDGE network. With the iPhone 5, it’s changed. There’s a chance that your device is compatible.
If you have an A1428 model iPhone 5, it will connect to T-Mobile’s AWS bands (1700/2100), here’s how to check if yours does:
Go to Settings –> General –> About.
Check the last 4 digits of your serial number to see if they match these combinations:
FH19
FH1C
FH1D
FH1F
FH1G
FH1H
You can also locate your iPhone 5 box and verify that the label includes “1700/2100″ under the UMTS/HSPA+/DC-HSDPA bands.
I would really be interested to know if those of you having trouble have the "old" Iphone5 like I do (serial numbers that end in other digits, mine ends with DTTN). Maybe once we present Apple with irrefutable evidence and numbers they will give us the newer version of the phone. The phone that won't support T-Mobile also won't support many international networks either for those of us that travel internationally.
If not, I guess that's what I get for getting the device early (I usually try not to as there is always some kind of bug). I just really needed the upgrade as my husband was going to Iraq and could IMessage me over wifi without paying an arm and a leg.
Please let me know if anyone else is having the same problem with the same (older) Iphone 5 (check your serial number against the list above).

It would be worth getting a new SIM, just to see if that helps any. You may want to contact your carrier and have them double-check things with your account.
I know the SIM works on another device, but getting a new one is still worth a shot. Get one, restore your phone as new & try one more time. If still no joy, you may have a defective phone that needs to be replaced.
~Lyssa

No longer get a Signal. My zip code is 32421 in NW Florida

My zip code is 32421 in NW Florida, Just about the middle of the map, just below Interstate 10. I have been with Verizon since it took a portion of ALLTEL, was with Alltel since they took over another company and was with that company when they took over one. I have not personally changed providers in at least 15 years or more. My problem now is that my signal strength has become almost nonexistent where I have always been all these years. It seems like the fall of 2013 I had good signal but it started dropping. I finally change from a Motorola Maxx (I think it was) and now my wife has a Samsung Galaxy S3 and I have the S4. The other 2 phones on our contract (grandkids) both Apple 4's have the same problem. My son and his wife, who live next door and with Verizon also have the same problem and timeline. It is like a tower(s) have been out of commission for a while. My phone roams at times while in the house. If I have my phone set to announce when it loses the network or regains the network, it became to irritating to have to hear it. At one point we could almost use our cell phones exclusively at home. Now we are bound to landlines. I've never had any problem with Verizon but have become quite upset during the last 6 months to the point of trying something different when our contract expires. We are no longer getting the service we were getting with earlier contracts. Please help. Tell us what we can do or what Verizon is going to do to check this out.

The signal is ever so slightly higher outside as would be expected, but still not high enough, often enough to be depended on. In fact it is more prone to roam when stepping out of the house than inside. I have to drive several miles Northwest (approximately 7 miles) towards the intersection of Interstate 10 and SR 71 in the panhandle of Florida, just south of the town, Marianna. When heading east on SR 286 from SR69, through the Ochessee area to I-10 and then heading east for about 10 miles from the Apalachicola River are several dropout areas of low to no signal, but since we're moving it is for a very brief period of time. Getting back to my house though, the service that I had as late as last summer, both inside and out, has significantly declined. Just based on my driving from my house, it seems that a tower North of me has dropped. You can find these roads on Google maps, in fact you can find them by zooming in on the Verizon Coverage map, find Tallahassee in North Florida and follow Interstate 10 to the west for about 50 miles. The problem seems to be from SR 286 to SR 69 then to SR71. Along a stretch about 17 miles south of Interstate 10 in between these 3 intersections is where the problem seem most prevalent.
I'm not sure what you meant by follow and send a private message. The only option I see for me is "Reply". Please excuse my ignorance.

Enterprise wide wireless solution

Hi All
I got task to design enterprise wide wireless solution for my client. There are 50+ offices from 20-600 users. Offices are mostly connected as a hub and spoke by MPLS or VPN IPsec. Most of the office will have one or more WLC but some will have AP (H-REAP) only. User should be able to roam everywhere. Certificate must be deployed (EAP-TLS) on client and server. I’m not sure how to deploy Radius. Just primary and secondary centrally located or somehow distributed. Any suggestion re this whole scenario will be appreciated
Thank you

I agree with Stephen/Steve's post. Get someone to do the design, pre-installation survey, implementation and post-implementation survey. There are alot of things that can go wrong and there are misconceptions that need to be ironed out. For example:
There are 50+ offices from 20-600 users.
Ok. There's no biggie with the statement above. But it will not "gell" with the statement below:
User should be able to roam everywhere.
Alot of executives believe (incorrectly) that WLAN roaming and mobile/cell phone roaming are synonymous. This perception needs to be taken with caution.
You have 50+ offices. Ok, I get this. Now unless you are going to tell me that the "open space" between each offices will be covered with your WLAN then there's no such thing as "roaming". You will get the feeling of "roaming" when you are, for example, in an office with wall-to-wall wireless and you walk from one end of the building to the opposite end and you are still continuously on the wireless. This is possible because your client was able to continuously connect to the same WLAN and the WLAN handed your client from one WAP to another.

Using X3500 as a Wireless Extender DHCP issue iPhone 6

Hi
Hopefully a simple question with a simple answer.
Background:
I've transitioned away from my ADSL ISP to a cable provider (VirginMedia). My new ISP comes with a cable modem (SuperHub 2 ac) and I've connected the two devices together to extend my home wireless network. The cable modem is The two routers are physically remote from each other - connected via just their Ethernet ports - via power-line technology (Devolo dLAN 1200+). The two routers have the same broadcast SSID albeit on separate channels.
Issue:
All devices in my house, laptops tablets, phones roam between the two wi-fi zones seamlessly *except* the iPhone 6 (iOS8.1), this works on the cable modem wi-fi - but not on the X3500 wi-fi. I also have an iPad Mini 2 (also iOS8.1) which also works - so rightly / wrongly I've ruled out iO8.1 as the issue. Oddly the iPhone 6 connects to the x3500 but doesn't obtain an IP address (the cable modem is the DHCP server). Even setting a static IP address doesn't help.
Observation(s):
If the X3500 is setup as a DHCP server, the iPhoen connects (and gets an IP address), but then the default gateway is incorrect (gatway is the IP address of the X3500 not the remote cable modem). I can't find anywhere to specify a default gateway in the setup.
Question
I'm beginning to think this is an issue with the iPhone 6 (knowing all other devices work correctly), but I just want to make sure I'm configuring the X3500 correctly. I'm specifically interested in the whether I'm using the right "Mode"ADSL / Ethernet. I've tried "Bridged Mode Only" (ADSL) and "Automatic DCHP Only" (Ethernet) but neither seem to resolve the issue that the iPhone 6 is having.
any suggestions on how to resolve / troubleshoot would be most welcomed.
Thanks!
Solved!
Go to Solution.

Yes, there's a way for you to override the IP Address. It is on Router Address under Network Setup on the Basic Setup tab. If I'm not mistaken, one end of the Ethernet cable should be connected to the regular Ethernet port of the cable modem and the other end to the cable port of the X3500.
But if it's just the iPhone that won't connect to the X3500, it might be okay to retain the current configuration of the router, but try adjusting the wireless security mode or set the wireless channel to 11 and observe what happens.

Mac-address-table takes too long to update on 4507R

Hi,
I'm trying to use spectralink phones, I have autonomous APs on seperate 2960s (and one on the 4507) - when the phones roam between the APs it takes very long for the mac address table to update on the 4507 even though there's uplink traffic.
I have supervisor engine II+ (I read there are problems in previous versions)
can anyone help?
thanks

Upgrading the switch could help avoid this problem..

Phone Roaming

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