cdma

How to get phone number of an android CDMA phone?

青春壹個敷衍的年華 提交于 2019-12-01 07:30:50
问题 The TelephonyManager.getLine1Number() works on GSM phones, but not CDMA phones. Is it possible to get the phone number of a CDMA phone through android API calls at all? thanks 回答1: I've successfully used the following on a Motorola Droid and HTC EVO 4G which are both CDMA. TelephonyManager telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE); String phoneNumber = telephonyManager.getLine1Number(); Make sure you are requesting the correct permission in your manifest

How to find out whether android device has cellular radio module?

痴心易碎 提交于 2019-12-01 06:11:11
问题 How can I find out for sure that device really has gsm, cdma or other cellular network equipment (not just WiFi)? I don't want to check current connected network state, because device can be offline in the moment. And I don't want to check device id via ((TelephonyManager) act.getSystemService(Context.TELEPHONY_SERVICE)).getDeviceId() because some devices would just give you polymorphic or dummy device ID. Actualy, I need to check cell equipment exactly for skipping TelephonyManager

How to check if iPhone supports CDMA or GSM

爷,独闯天下 提交于 2019-11-29 02:45:26
Is there any way to identify if iPhone supports CDMA or GSM network. Any Apple API in Objective-C which can provide this information. You might examine model id with the function ( credits ): #include <sys/types.h> #include <sys/sysctl.h> NSString* machine () { size_t size; // Set 'oldp' parameter to NULL to get the size of the data // returned so we can allocate appropriate amount of space sysctlbyname("hw.machine", NULL, &size, NULL, 0); // Allocate the space to store name char *name = malloc(size); // Get the platform name sysctlbyname("hw.machine", name, &size, NULL, 0); // Place name into

Android中的 MEID, IMEI,PESN,SN

☆樱花仙子☆ 提交于 2019-11-28 15:27:30
ESN,MEID和PESN ESN(Electronic Serial Number):电子序列号。在CDMA系统中,是鉴别一个物理硬件设备的唯一标识。也就是说每个手机都用这个唯一的ID来鉴别最忌,就和人的身份证一样。 一个ESN有32bits,也就是32/8 = 4bytes. ESN 用8位的16进制来表示,如0x801EA066.随着CDMA移动设备的增多,ESN已经不够用了所以推出了更多位数的MEID. MEID(Mobile Equipment ID): 手机设备识别码,MEID可以表示为14位的16进制码,如0xA1000002B0BEB2.开头的0xA表示CDMA手机,如果是0x9,就表示多模手机。 PESN(Pesudo ESN):伪ESN。PESN的推出是为了解决向前兼容的问题,PESN的格式与ESN是完全一样的,唯一的区别是PESN采用0x80开头的。将MEID转为pESN,就可以支持ESN的C网内正常使用。 MEID转化为pESN具体的方法是,56 bits的MEID通过SHA-1 hash算法,挑出后6位,然后在开头加上0x80。pESN并不是唯一的,是可能会重复的,但pESN不会跟ESN重复,因为开头强制加了0x80; 以下是一些现况: 1、一个手机只能有一个ESN或一个MEID。如6800、6900均是ESN码;但6950开始就采用MEID码了。 2

CDMA系统概论

我是研究僧i 提交于 2019-11-28 02:11:37
CDMA是码分多址的英文缩写(Code Division Multiple Access),它是在数字技术的分支--扩频通信技术上发展起来的一种崭新而成熟的无线通信技术。 CDMA的特点: 1、覆盖范围大 2、网规简单 3、频率复用系数高 4、设计扩容简单 5、隐蔽性好 6、软切换技术 CDMA双工技术 对于移动通信而言,双向通信可以以频率分开(FDD 分频双工),也可以以时间分开(TDD 分时双工) FDD方式-上下行频率配对 TDD方式-上下行频率相同 需要成对频段 可用于任何频段 适合于上下行对称业务 适合于上下行非对称级对称业务 CDMA采用扩频的码分多址技术。GSM采用时分的多址技术。 我国CDMA系统频率使用规划   联通新时空CDMA占用的载频上行(825MHz-835MHz)下行(870MHz-880MHz)   载频计算:   上行:载频=0.030MHz*载频号(编号)+825.000MHz   下行:载频=0.030MHz*载频号(编号)+870.000MHz 来源: https://www.cnblogs.com/Clanquire-C/p/11938378.html

How to get the country code for CDMA Android devices?

情到浓时终转凉″ 提交于 2019-11-28 01:22:44
Does anyone know how to retrieve the country code information for Android devices under CDMA networks? For all others, you can just use the TelephonyManager for that: String countryCode = null; TelephonyManager telMgr = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE); if (telMgr.getPhoneType() != TelephonyManager.PHONE_TYPE_CDMA) countryCode = telMgr.getNetworkCountryIso(); } else { // Now what??? } I searched a bit but did not find any useful information that would lead to an answer. Some ideas some to mind: GPS location: you can get the country from GeoCoder ; and IP

How to check if iPhone supports CDMA or GSM

独自空忆成欢 提交于 2019-11-27 21:58:26
问题 Is there any way to identify if iPhone supports CDMA or GSM network. Any Apple API in Objective-C which can provide this information. 回答1: You might examine model id with the function (credits): #include <sys/types.h> #include <sys/sysctl.h> NSString* machine () { size_t size; // Set 'oldp' parameter to NULL to get the size of the data // returned so we can allocate appropriate amount of space sysctlbyname("hw.machine", NULL, &size, NULL, 0); // Allocate the space to store name char *name =

How to get the country code for CDMA Android devices?

北城以北 提交于 2019-11-27 04:47:32
问题 Does anyone know how to retrieve the country code information for Android devices under CDMA networks? For all others, you can just use the TelephonyManager for that: String countryCode = null; TelephonyManager telMgr = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE); if (telMgr.getPhoneType() != TelephonyManager.PHONE_TYPE_CDMA) countryCode = telMgr.getNetworkCountryIso(); } else { // Now what??? } I searched a bit but did not find any useful information that would lead