#wificalling — Public Fediverse posts

### **Синергия внешнего приема и Wi-Fi Calling: Технический разбор**
Использование внешнего CPE-роутера (Customer Premises Equipment) в связке с технологией Wi-Fi Calling — это не просто «улучшение связи», а создание **автономного узла доступа** в условиях полной изоляции от макросети. В такой архитектуре мы переносим точку дедупликации и обработки сигнала из зоны радио-тени (внутри помещения) непосредственно в зону прямой видимости базовой станции (на крышу или мачту).
#### **1. Архитектурные преимущества «Выносного решения»**
* **Исключение затухания в фидере:** В классических схемах с пассивной антенной сигнал теряет до **0.5–1.0 дБ на метр** коаксиального кабеля. Внешний роутер передает данные по Ethernet (PoE), где потери на дистанции до 100 метров равны нулю.
* **Высокий SINR (Signal-to-Interference-plus-Noise Ratio):** За счет узконаправленных антенн внешнего блока (панельных или параболических) отсекаются интерференционные шумы от соседних базовых станций, что критически важно для стабильности IPsec-туннеля Wi-Fi Calling.
* **Агрегация частот (Carrier Aggregation):** Внешние модемы высоких категорий (Cat.12 и выше) способны суммировать полосы из разных диапазонов (например, B3+B7+B20), обеспечивая канал, достаточный не только для голоса, но и для передачи тяжелого контента параллельно со звонком.
#### **2. Механика взаимодействия**
Когда смартфон подключается к Wi-Fi сети, созданной таким роутером:
1. **IKEv2 аутентификация:** Смартфон инициирует защищенное соединение с ePDG (evolved Packet Data Gateway) оператора.
2. **Виртуальный туннель:** Весь голосовой трафик инкапсулируется в UDP-пакеты. Благодаря внешнему роутеру, джиттер (дрожание фазы) минимален, что предотвращает металлический голос или прерывания.
3. **Бесшовная передача (Handover):** При выходе из здания, если сигнал на улице станет достаточным, сессия переключится на VoLTE без обрыва разговора.
#### **3. Сценарии применения**
* **Бункеры и цокольные этажи:** Где бетон и арматура создают эффект клетки Фарадея.
* **Удаленные промзоны:** Где плотность базовых станций низкая, и смартфон в помещении тратит весь заряд на попытки «достучаться» до сети.
* **Объекты с EW-активностью (РЭБ):** Выносная направленная антенна с высоким коэффициентом усиления позволяет «пробить» помехи за счет узкого луча и пространственной фильтрации.
### **Техническая спецификация системы**

| Параметр | Значение / Описание |
| :--- | :--- |
| **Протокол передачи** | Voice over Wi-Fi (IEEE 802.11 / 3GPP TS 23.402) |
| **Транспортный протокол** | IPsec (IKEv2) через внешний LTE/5G канал |
| **Усиление антенны** | от 15 dBi (панель) до 27 dBi (сетчатый параболик) |
| **Метод питания** | Passive PoE или 802.3af/at (по одной «витой паре») |
| **Кодеки** | AMR-WB (G.722.2) для HD Voice качества |

> **Атрибуция:** Анализ основан на архитектуре сетей IMS (IP Multimedia Subsystem) и стандартах развертывания Outdoor CPE для фиксированного беспроводного доступа (FWA).
>
#NetworkEngineering #SystemIntegration #LTE_CPE #WiFiCalling #HighGain #SignalProcessing #VoWiFi #Infrastructure #Connectivity #TechDeepDive

### **Синергия внешнего приема и Wi-Fi Calling: Технический разбор**
Использование внешнего CPE-роутера (Customer Premises Equipment) в связке с технологией Wi-Fi Calling — это не просто «улучшение связи», а создание **автономного узла доступа** в условиях полной изоляции от макросети. В такой архитектуре мы переносим точку дедупликации и обработки сигнала из зоны радио-тени (внутри помещения) непосредственно в зону прямой видимости базовой станции (на крышу или мачту).
#### **1. Архитектурные преимущества «Выносного решения»**
* **Исключение затухания в фидере:** В классических схемах с пассивной антенной сигнал теряет до **0.5–1.0 дБ на метр** коаксиального кабеля. Внешний роутер передает данные по Ethernet (PoE), где потери на дистанции до 100 метров равны нулю.
* **Высокий SINR (Signal-to-Interference-plus-Noise Ratio):** За счет узконаправленных антенн внешнего блока (панельных или параболических) отсекаются интерференционные шумы от соседних базовых станций, что критически важно для стабильности IPsec-туннеля Wi-Fi Calling.
* **Агрегация частот (Carrier Aggregation):** Внешние модемы высоких категорий (Cat.12 и выше) способны суммировать полосы из разных диапазонов (например, B3+B7+B20), обеспечивая канал, достаточный не только для голоса, но и для передачи тяжелого контента параллельно со звонком.
#### **2. Механика взаимодействия**
Когда смартфон подключается к Wi-Fi сети, созданной таким роутером:
1. **IKEv2 аутентификация:** Смартфон инициирует защищенное соединение с ePDG (evolved Packet Data Gateway) оператора.
2. **Виртуальный туннель:** Весь голосовой трафик инкапсулируется в UDP-пакеты. Благодаря внешнему роутеру, джиттер (дрожание фазы) минимален, что предотвращает металлический голос или прерывания.
3. **Бесшовная передача (Handover):** При выходе из здания, если сигнал на улице станет достаточным, сессия переключится на VoLTE без обрыва разговора.
#### **3. Сценарии применения**
* **Бункеры и цокольные этажи:** Где бетон и арматура создают эффект клетки Фарадея.
* **Удаленные промзоны:** Где плотность базовых станций низкая, и смартфон в помещении тратит весь заряд на попытки «достучаться» до сети.
* **Объекты с EW-активностью (РЭБ):** Выносная направленная антенна с высоким коэффициентом усиления позволяет «пробить» помехи за счет узкого луча и пространственной фильтрации.
### **Техническая спецификация системы**

| Параметр | Значение / Описание |
| :--- | :--- |
| **Протокол передачи** | Voice over Wi-Fi (IEEE 802.11 / 3GPP TS 23.402) |
| **Транспортный протокол** | IPsec (IKEv2) через внешний LTE/5G канал |
| **Усиление антенны** | от 15 dBi (панель) до 27 dBi (сетчатый параболик) |
| **Метод питания** | Passive PoE или 802.3af/at (по одной «витой паре») |
| **Кодеки** | AMR-WB (G.722.2) для HD Voice качества |

> **Атрибуция:** Анализ основан на архитектуре сетей IMS (IP Multimedia Subsystem) и стандартах развертывания Outdoor CPE для фиксированного беспроводного доступа (FWA).
>
#NetworkEngineering #SystemIntegration #LTE_CPE #WiFiCalling #HighGain #SignalProcessing #VoWiFi #Infrastructure #Connectivity #TechDeepDive

🧵 Okay, #Mobilfunk können wir hier in #Ofterdingen nicht, aber wir haben jetzt 98,5% Gigabit-Abeckung. Als wer wöllte, könnte #Glasfaser bekommen. Oder die Phantasie, über #Vodafone-Fernsehkabel wirklich 1gbps zu kriegen.

Und mit #DeutscheGlasfaser funzt #WifiCalling soweit, dass man zuhause sein Handy nutzen kann.

O2 UK łata podatność pozwalającą na geolokalizację użytkowników smartfonów z technologią VoLTE

Operatorzy GSM, dla poprawienia jakości rozmów, mogą wykorzystać standard VoLTE czy Voice over LTE, pozwalający na realizację połączeń głosowych z użyciem sieci 4G LTE. Zwykle do rozmów telefonicznych oraz SMSów wykorzystywane były starsze (i mniej bezpieczne) standardy jak 2G i 3G, a nowsze technologie zapewniały tylko szybszą wymianę danych. VoLTE...

#WBiegu #Geolokalizacja #Gsm #Lte #OSINT #Prywatność #SiP #Wificalling

https://sekurak.pl/o2-uk-lata-podatnosc-pozwalajaca-na-geolokalizacje-uzytkownikow-smartfonow-z-technologia-volte/

WLAN-Telefonie: Nie wieder schlechter Empfang! 📶 Der Artikel von @heiseonline zeigt, wie man unter Android und iOS #WiFiCalling aktiviert, um über WLAN zu telefonieren. 📱 So klappt's auch in der Bahn oder im Keller! 💡 Mehr dazu: https://www.heise.de/tipps-tricks/Telefonieren-ueber-WLAN-so-geht-s-4676767.html #WLAN #Telefonie #Tipps #Tricks #lifehack

#shrturl

https://heise.de/-4676767

WLAN-Telefonie: Nie wieder schlechter Empfang! 📶 Der Artikel von @heiseonline zeigt, wie man unter Android und iOS #WiFiCalling aktiviert, um über WLAN zu telefonieren. 📱 So klappt's auch in der Bahn oder im Keller! 💡 Mehr dazu: https://www.heise.de/tipps-tricks/Telefonieren-ueber-WLAN-so-geht-s-4676767.html #WLAN #Telefonie #Tipps #Tricks #lifehack

#shrturl

https://heise.de/-4676767

Telefonieren über WLAN (WiFi-Calling/VoWiFi) verbessert die Sprachqualität & Rufaufbau, besonders bei schlechtem Mobilfunkempfang. EVS ("HD Voice Plus") sorgt für kristallklare Gespräche. Prepaid-Kunden können es auch nutzen! 📶 📞 🌐 #WiFiCalling #VoWiFi #Mobilfunk #Heise #lifehack

https://www.heise.de/hintergrund/Telefonieren-per-WiFi-Calling-6003497.html

#shrturl https://heise.de/-6003497

RANT=> Vorrei mettere totalmente al bando i sistemi OTP via SMS

Con la rete cellulare che abbiamo in Italia, e per il fatto che in molti luoghi chiusi si è schermati dal segnale mobile, di fatto crea tanto #digitaldivide ed è un modo ASSURDO e ormai fuori dal tempo per fare autenticazione

A casa la rete cellulare fa #cagare, il #wificalling ancora non è ben supportato dai gestori di fonia, e quindi quando per fare una transazione (avendo pure la mail) mi chiedono (PER FORZA) gli sms, SBROCCO 🤬

I've become a fan of #GrapheneOS since I overcame my disgust of Google and bought a used Pixel phone. @GrapheneOS is a great example of usable security.

It's easier to install and use than most other aftermarket #Android distributions I tried. And it has been a bug-free experience for me – until 1 or 2 weeks ago when the telephone stopped ringing when someone called. Phone calls did not even raise a full-screen notification any more. Only when I happend to watch the notification area was I able to see that someone is calling me. Most of the time, I only saw it when they had given up.

Then yesterday the phone finally rang again! Today, this was broken again. Until I found a workaround! All I had to do was to disable WiFi telephony – a feature I had enabled right after I installed GrapheneOS and which had seemed to worked well.

Update: According to @GrapheneOS, the annoyance I described is not related to #GrapheneOS but most likely caused by the carrier: https://grapheneos.social/@GrapheneOS/113046499971181147

#WiFiTelephony #WiFiCalling #Android #bug

So the #S24Ultra has #WiFiCalling on AT&T but doesn't say it's using "AT&T Wi-Fi Calling" as the carrier. I figured this out because it has the same behavior with MMS as on my mom's #Pixel5A and my #iPhone6SPlus .

#ATT

So the #S24Ultra has #WiFiCalling on AT&T but doesn't say it's using "AT&T Wi-Fi Calling" as the carrier. I figured this out because it has the same behavior with MMS as on my mom's #Pixel5A and my #iPhone6SPlus .

#ATT

So the #S24Ultra has #WiFiCalling on AT&T but doesn't say it's using "AT&T Wi-Fi Calling" as the carrier. I figured this out because it has the same behavior with MMS as on my mom's #Pixel5A and my #iPhone6SPlus .

#ATT

So the #S24Ultra has #WiFiCalling on AT&T but doesn't say it's using "AT&T Wi-Fi Calling" as the carrier. I figured this out because it has the same behavior with MMS as on my mom's #Pixel5A and my #iPhone6SPlus .

#ATT

This is new #Vodafone #WiFiCalling on #iOS 🧐

Now we know how WiFi is spelled correctly

In its latest software update for Galaxy S24 smartphones, Samsung has introduced a new feature: Wi-Fi call recording in VoWiFi mode (Voice over Wi-Fi). This feature allows users to record calls made over Wi-Fi networks, which can be useful for capturing important information from lengthy conversations. However, it's important to note that this feature is only available in VoWiFi mode.

Voice-over Wi-Fi enables users to make calls directly over Wi-Fi, bypassing cellular networks, which can benefit areas with poor cellular coverage.

Here's how to use it: https://myelectricsparks.com/samsung-introduced-a-new-feature-wi-fi-call-recording-in-vowifi-mode/

#SamsungGalaxyS24 #VoWiFiRecording #OneUI6.1 #SamsungUpdate #PhoneFeatures #TechNews #Telecom #GalaxyPhones #VoiceRecording
#WiFiCalling

In its latest software update for Galaxy S24 smartphones, Samsung has introduced a new feature: Wi-Fi call recording in VoWiFi mode (Voice over Wi-Fi). This feature allows users to record calls made over Wi-Fi networks, which can be useful for capturing important information from lengthy conversations. However, it's important to note that this feature is only available in VoWiFi mode.

Voice-over Wi-Fi enables users to make calls directly over Wi-Fi, bypassing cellular networks, which can be beneficial in areas with poor cellular coverage. To use the VoWiFi recording feature, users must navigate to the phone's settings menu, access the Calls option, and enable the VoWiFi call recording feature under Other Call Settings.

It's essential to exercise caution when using call recording features, especially without the consent of all parties involved, as it may raise ethical and legal concerns in some jurisdictions. Therefore, it's advisable to use such features responsibly and with careful consideration of privacy and legal implications.

#SamsungGalaxyS24 #VoWiFiRecording #OneUI6.1 #SamsungUpdate #PhoneFeatures #TechNews #Telecom #GalaxyPhones #VoiceRecording
#WiFiCalling

Google tells users of some Android phones: Nuke voice calling to avoid infection - Enlarge / Images of the Samsung Galaxy S21, which runs with an Exynos c... - https://arstechnica.com/?p=1925040 #vulnerabilities #wificalling #baseband #android #samsung #biz⁢ #volte

Anyone know of an #openSource #wifiCalling dialler app for #android ?

My network (#plusnet) shut down and I've moved to #idMobile who resell #ThreeMobileNetwork which has rubbish reception. They say enable wifi-calling which is available in Samsung Phone app but I'm pretty sure tells Samsung about every call I make.

Until needing this feature I've used Simple Dialler from #fDroid which is good but doesn't support wifi calling

#privacy

Anyone that uses #WiFiCalling (does it matter if I specify on #ATT or a comparable network?) on #Android : If you get #spam calls from random numbers, does the #Fossify / #SimpleMobileTools dialer app work ok with the feature to only allow calls from your contacts through (as the SimpleMobileTools dialer app's description on #FDroid mentions) if using Wi-Fi Calling? I mentioned both SMT and Fossify as not everyone might be aware of both, and the feature is only mentioned on SMT dialer's page.

Should I look into getting a new phone? I've had my #iPhone6SPlus since May 2018 which is the longest I've had a phone but the problem is headphone jacks basically don't exist unless I want to buy an #Xperia or a #Zenfone but neither of them have #WiFiCalling on #ATT and the Xperias have way too weird of an aspect ratio for me. At least the #S24Ultra has a squared-off screen and 7 years of updates, but no #HeadphoneJack. Should I do two phones like I did when I got my #Lumia830?

Hey to my Google Fi friends, I have a friend that has a Galaxy A14 5G on Fi and has WiFi Calling enabled in the Fi app.

However in the Phone app in settings it doesn’t show the WiFi Calling option to enable/disable. The system software & carrier settings are all up to date and searching for it in the main Settings page comes up snake eyes as well.

Am I missing anything else to try to get this to work/show up as a option?

#googlefi #wificalling

There is no technical reason why Wi-Fi Calling/voice over Wi-Fi can't work on #Linux phones. There could be a server running on the modem that sends your microphone audio to the other caller, and it can give received audio to userspace daemon which is then forwarded to the app using it. This would also apply to text messages. Only thing preventing this is #BigTelecom not wanting to give access to anyone else besides #Apple (if that's the case).

#LinuxMobile #VoWiFi #WiFiCalling

I've said it before and I'll say it again: #WiFiCalling and #femtocells are generally scams that let #carriers get away with subpar/nonexistent cellular coverage without lifting a finger while locking users into a select few #phones and operating system images (if they live in a deadzone) and extracting the full bill's payment.

Mal ne Frage an die #Globetrotter unter euch: wenn ich in ein außereuropäisches Land reise, sagen wir #Japan, ist Roaming grundsätzlich ausgeschaltet, beziehungsweise ich schalte es aus. Funktioniert Wi-Fi Calling im WLAN trotzdem? Blocken hiesige Netzbetreiber, ausländische IPs? Danke 🙏 #wificalling #wlananruf

Covered this during Tech Talk Thursdays and the amount of devices affected are vast and wide!

Google: Turn off VoLTE, Wi-Fi calling due to severe Exynos modem vulnerabilities on Pixel 6, more https://9to5google.com/2023/03/16/google-exynos-modem-vulnerabilities/

#Google #Android #Samsung #Exynos #VoLTE #WiFiCalling #Modem #Vulnerabilities #Pixel #InfoSec #TechNews

#WiFiCalling is just an excuse for carriers to be lazy and not spend anything on improving their coverage (and thus profiting) at the expense of consumer choice in which phones and OS's to use. If there were no #femtocell from them in 2015, we wouldn't have been able to use our Lumias at home on #ATT.

#capitalism

Anyone know of an #openSource #wifiCalling dialler app for #android ?

My network (#plusnet) shut down and I've moved to #idMobile who resell #ThreeMobileNetwork which has rubbish reception. They say enable wifi-calling which is available in Samsung Phone app but I'm pretty sure tells Samsung about every call I make.

Until needing this feature I've used Simple Dialler from #fDroid which is good but doesn't support wifi calling

#privacy

Anyone know of an #openSource #wifiCalling dialler app for #android ?

My network (#plusnet) shut down and I've moved to #idMobile who resell #ThreeMobileNetwork which has rubbish reception. They say enable wifi-calling which is available in Samsung Phone app but I'm pretty sure tells Samsung about every call I make.

Until needing this feature I've used Simple Dialler from #fDroid which is good but doesn't support wifi calling

#privacy

Anyone know of an #openSource #wifiCalling dialler app for #android ?

My network (#plusnet) shut down and I've moved to #idMobile who resell #ThreeMobileNetwork which has rubbish reception. They say enable wifi-calling which is available in Samsung Phone app but I'm pretty sure tells Samsung about every call I make.

Until needing this feature I've used Simple Dialler from #fDroid which is good but doesn't support wifi calling

#privacy

Anyone know of an #openSource #wifiCalling dialler app for #android ?

My network (#plusnet) shut down and I've moved to #idMobile who resell #ThreeMobileNetwork which has rubbish reception. They say enable wifi-calling which is available in Samsung Phone app but I'm pretty sure tells Samsung about every call I make.

Until needing this feature I've used Simple Dialler from #fDroid which is good but doesn't support wifi calling

#privacy

I've said it before and I'll say it again: #WiFiCalling and #femtocells are generally scams that let #carriers get away with subpar/nonexistent cellular coverage without lifting a finger while locking users into a select few #phones and operating system images (if they live in a deadzone) and extracting the full bill's payment.

There is no technical reason why Wi-Fi Calling/voice over Wi-Fi can't work on #Linux phones. There could be a server running on the modem that sends your microphone audio to the other caller, and it can give received audio to userspace daemon which is then forwarded to the app using it. This would also apply to text messages. Only thing preventing this is #BigTelecom not wanting to give access to anyone else besides #Apple (if that's the case).

#LinuxMobile #VoWiFi #WiFiCalling

There is no technical reason why Wi-Fi Calling/voice over Wi-Fi can't work on #Linux phones. There could be a server running on the modem that sends your microphone audio to the other caller, and it can give received audio to userspace daemon which is then forwarded to the app using it. This would also apply to text messages. Only thing preventing this is #BigTelecom not wanting to give access to anyone else besides #Apple (if that's the case).

#LinuxMobile #VoWiFi #WiFiCalling

There is no technical reason why Wi-Fi Calling/voice over Wi-Fi can't work on #Linux phones. There could be a server running on the modem that sends your microphone audio to the other caller, and it can give received audio to userspace daemon which is then forwarded to the app using it. This would also apply to text messages. Only thing preventing this is #BigTelecom not wanting to give access to anyone else besides #Apple (if that's the case).

#LinuxMobile #VoWiFi #WiFiCalling

There is no technical reason why Wi-Fi Calling/voice over Wi-Fi can't work on #Linux phones. There could be a server running on the modem that sends your microphone audio to the other caller, and it can give received audio to userspace daemon which is then forwarded to the app using it. This would also apply to text messages. Only thing preventing this is #BigTelecom not wanting to give access to anyone else besides #Apple (if that's the case).

#LinuxMobile #VoWiFi #WiFiCalling