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Cingular APN settings for Microsoft Lumia 640 Dual SIM

      Cingular   Microsoft Lumia 640 Dual SIM   Windows

Microsoft Lumia 640 Dual SIM is compatible with Cingular GSM and Cingular HSDPA.

Cingular Internet & MMS APN settings

Go to App list, tap Settings Cellular + SIM

If your phone supports more than 1 SIM card, choose SIM 1 settings or SIM 2 settings depending on the SIM that you want to use for Cingular 2.
Turn on Data Connection.

Enable Use cellular data in For limited Wi-Fi connectivity
If you have more than 1 SIM card choose the SIM card for data connection in SIM for data connection
Enable 3G connection for faster data transfer speeds. Also enable Highest connection speed

Internet Configuration Settings:

In Cellular + SIM Settings, select SIM settings Add Internet APN
If you have a dual SIM phone select the SIM card.

Change the below settings

APN: wap.cingular
User name: wap@cingulargprs.com
Password: cingular1
Authentication type:
Proxy server (URL):
Proxy port:
IP type: IPv4

Tap Save


MMS Configuration Settings:

In Cellular + SIM Settings, select SIM settings Add MMS APN

If you have a dual SIM phone select the SIM card.

Change the below settings

APN: wap.cingular
User name: wap@cingulargprs.com
Password: cingular1
Authentication type:
WAP gateway (URL): wireless.cingular.com
WAP gateway port: 80
MMSC (URL): http://mmsc.cingular.com
MMSC port:
Maximum MMS size: 1024
IP Type: IPv4

Tap Save.


If the above Cingular Internet & MMS APN settings do not work on your Lumia 640 Dual SIM, make below changes to Cingular Internet & MMS APN settings to get Cingular 380 ATT on your Microsoft Lumia 640 Dual SIM.

APNproxy
User nameblank
Passwordblank
MMSC (URL)http//mmsc.cingular.com/
MMS APN: WAP gateway (URL)wireless.cingular.com
MMS APN: WAP gateway portblank
Authentication typeNone
APN protocolIPv4

Cingular MMS APN Settings

Go to App list, tap Settings Cellular + SIM

If your phone supports more than 1 SIM card, choose SIM 1 settings or SIM 2 settings depending on the SIM that you want to use for Cingular 3.
Turn on Data Connection.

Enable Use cellular data in For limited Wi-Fi connectivity
If you have more than 1 SIM card choose the SIM card for data connection in SIM for data connection
Enable 3G connection for faster data transfer speeds. Also enable Highest connection speed


MMS Configuration Settings:

In Cellular + SIM Settings, select SIM settings Add MMS APN

If you have a dual SIM phone select the SIM card.

Change the below settings

APN: wap.cingular
User name: WAP@CINGULARGPRS.COM
Password: CINGULAR1
Authentication type:
WAP gateway (URL): 66.209.11.32
WAP gateway port: 8080
MMSC (URL): http://mmsc.cingular.com
MMSC port:
Maximum MMS size: 1024
IP Type: IPv4

Tap Save.


For Microsoft Lumia 640 Dual SIM, when you type Cingular APN settings, make sure you enter APN settings in correct case. For example, if you are entering Cingular Internet & MMS APN settings make sure you enter APN as wap.cingular and not as WAP.CINGULAR or Wap.cingular . If entering Cingular APN Settings above to your Microsoft Lumia 640 Dual SIM, APN should be entered as ISP.CINGULAR and not as isp.cingular or Isp.cingular.

Microsoft Lumia 640 Dual SIM compatibility with Cingular

Microsoft Lumia 640 Dual SIM is compatible with below network frequencies of Cingular.

2G
GSM850 MHz, 1900 MHz
3G
HSDPA850 MHz, 1900 MHz

Explain Microsoft Lumia 640 Dual SIM compatibility with Cingular

Cingular 2G APN with Microsoft Lumia 640 Dual SIM

Microsoft Lumia 640 Dual SIM supports Cingular 2G on GSM 850 MHz and 1900 MHz.

Cingular 3G APN with Microsoft Lumia 640 Dual SIM

Microsoft Lumia 640 Dual SIM supports Cingular 3G on HSDPA 850 MHz and 1900 MHz.

Overall compatibililty of Microsoft Lumia 640 Dual SIM with Cingular is 100%. The compatibility of Microsoft Lumia 640 Dual SIM with Cingular , or the Cingular network support on Microsoft Lumia 640 Dual SIM we have explained here is only a technical specification match between Microsoft Lumia 640 Dual SIM and Cingular network. Even Microsoft Lumia 640 Dual SIM is listed as compatible here, Cingular network can still disallow (sometimes) Microsoft Lumia 640 Dual SIM in their network using IMEI ranges. Therefore, this only explains if Cingular allows Microsoft Lumia 640 Dual SIM in their network, whether Microsoft Lumia 640 Dual SIM will work properly or not, in which bands Microsoft Lumia 640 Dual SIM will work on Cingular and the network performance between Cingular and Microsoft Lumia 640 Dual SIM. To check if Microsoft Lumia 640 Dual SIM is really allowed in Cingular network please contact Cingular support. Do not use this website to decide to buy Microsoft Lumia 640 Dual SIM to use on Cingular .

Microsoft Lumia 640 Dual SIM network specifications

OS Microsoft Windows Phone 8.1 with Lumia Denim
Network bands GSM / HSPA
Speed HSPA 42.2/5.76 Mbps
Network frequencies GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
HSDPA 850 / 900 / 1900 / 2100

See full specs at GSM.COOL... Select a different device... Select a different network...