911024 - [B2G][Helix][dialer][tongxiao]The UE will diaplay the Signal strength in a unavailable card, when call a emergency number.

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: Gaia::System, defect, P2)

Description

[lecky]

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; MALC; aff-kingsoft-ciba; .NET4.0C; .NET4.0E; Tablet PC 2.0)

Steps to reproduce:

【Detail Description*】：The UE will diaplay the Signal strength in a unavailable card, when call a emergency number.
【Repro Steps*】：
1. Insert a unavailable  card .
2. the UE can identify the card ,but could not access the  network and will not diaplay the Signal strength .
3. The UE call a emergency number .
4. Then the UE will  diaplay the Signal strength in the signal bar.
【Expect Result*】：The UE will  not diaplay the Signal strength in the signal bar.
【Real Result*】：The UE will  diaplay the Signal strength in the signal bar.
【Test Count*】：10
【Found Count*】：10
【Gaia commit ID*】:c0ea0a4943dc8d3751b07f5b5c5d3abe06364a14 
【Gecko commit ID*】: 170f9e477571127cd40997fa2abe262ed43f0e4d
【Log*】：
【Network environment】：
【Resume operation】：
【Carrier】：

Comment 1

[lecky]

 any update?

Comment 2

[Wayne Chang [:wchang]]

Shawn, I think this is normal behaviour, can you confirm?

I believe the displayed signal indicates the signal strength of the cell/network that you're calling the ECC on.

Comment 3

[shawn ku [:sku]]

This is status bar design (in gaia).

When there is any call alive, signal bar will be drawn according to current asu/dbm value.

// Code snippet, statusbar.js
    signal: function sb_updateSignal() {
      var conn = window.navigator.mozMobileConnection;
      if (!conn || !conn.voice)
        return;

      var voice = conn.voice;
      var icon = this.icons.signal;
      var flightModeIcon = this.icons.flightMode;
      var _ = navigator.mozL10n.get;

      if (this.settingValues['ril.radio.disabled']) {
        // "Airplane Mode"
        icon.hidden = true;
        flightModeIcon.hidden = false;
        return;
      }

      flightModeIcon.hidden = true;
      icon.hidden = false;

      if (conn.cardState === 'absent') {
        // no SIM
        delete icon.dataset.level;
        delete icon.dataset.emergency;
        delete icon.dataset.searching;
        delete icon.dataset.roaming;
      } else if (voice.connected || this.hasActiveCall()) {
        // "Carrier" / "Carrier (Roaming)"
        icon.dataset.level = Math.ceil(voice.relSignalStrength / 20); // 0-5
        icon.dataset.roaming = voice.roaming;

        delete icon.dataset.emergency;
        delete icon.dataset.searching;
      } else {
        // "No Network" / "Emergency Calls Only (REASON)" / trying to connect
        icon.dataset.level = -1;
        // logically, we should have "&& !voice.connected" as well but we
        // already know this.
        icon.dataset.searching = (!voice.emergencyCallsOnly &&
                                  voice.state !== 'notSearching');
        icon.dataset.emergency = (voice.emergencyCallsOnly);
        delete icon.dataset.roaming;
      }

      if (voice.emergencyCallsOnly) {
        this.addCallListener();
      } else {
        this.removeCallListener();
      }

    },

Comment 4

[lecky]

Hi,
  when the UE is in emergency mode ,it is only in limited service.So there should not display the signal strength .When the UE show the signal strength , It means that the UE is in normal service ,not limited service. This is not good experience.

Comment 5

[shawn ku [:sku]]

Hi:
 Please ask Gaia people about this design.
Basically, I agree with your point.

Hi Wayne:
 Any need to loop Gaia RD to reply this?

Thanks!
sku

Comment 6

[Wayne Chang [:wchang]]

This can also be observed on devices on other operating systems and there is no definite 'right' implementation. 
There is still signal strength even if you're on limited service. As long as you have *any* service there is strength, it's just whether or not you indicate it.

This is not a blocker. but adding UX to comment and review this.

Comment 7

[Stephany Wilkes]

I am flagging Joe to advise if this is a feature that should be included in the product and backlog for 1.3.

Comment 8

[Joe Cheng [:jcheng] (please needinfo)]

koi? so it goes into comms team triage

Comment 9

[Joe Cheng [:jcheng] (please needinfo)]

hi reporter, can you please provide a video?

add to backlog bug 891754

Comment 10

[lecky]

Hi,
  I will provide it soon.

Comment 11

[BMO Automation]

Firefox OS is not being worked on