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Editorial Team
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Asked: 2026-05-30T08:38:20+00:00

I am having issues with C2DM. Sometimes works perfectly, sometimes my messages simply do

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I am having issues with C2DM. Sometimes works perfectly, sometimes my messages simply do not get pushed. Is there reliable way to enforce this connection? To pull messages. I read somewhere that what google do is keep low bandwidth TCP connection to their server at all time. So I assume that
when switching between network types TCP connection falls down and Android tries to reestablish connection to C2DM servers. So that might fail on WiFi with restricted network. Is that wrong assumption?

I have noticed with WhatsApp that on WiFi sometimes I do not get messages. When I switch to 3G I usually get them at the moment of the switch. What tips from your experience with C2DM would you offer?

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1 Answer

  1. Editorial Team

    C2DM is not suitable for critical parts of your application, since Google currently does not offer an SLA or paid tiers that will guarantee you reliable service and throughput.

    I’ve considered several alternatives myself: XMPP via asmack, Parse, Deacon, Urban Airship, and MQTT.

    After some reading and experimenting I decided to go with MQTT. It is a very lightweight telemetry protocol invented at IBM that fits quite nicely in the Android push notifications scenario. I recommend you give it a try, here’s a nice blog post to guide you: Using MQTT in Android mobile applications.

    Hope this helps.

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