No Voice or Text on Inland Cellular (non-MVNO) but Internet Data Works!
11-17-2020, 06:21 AM
(This post was last modified: 11-17-2020, 06:38 AM by vap0rtranz.)
I'm in a similar situation to the OP.
I've recently switched to a non-MNVO, regional carrier -- Cellcom --, activated their SIM in my partner's Android to verify SMS/voice, but get no voice/txt/data from the Pinephone on their network. Both a rep in the store and a tech in chat confirmed that my carrier doesn't blacklist devices, but I'd be curious how to technically confirm that. (See modem comment below)
Can someone give pointers on troubleshooting non-supported carriers? I posted an issue just yesterday about how best to work with the modem & network setup to the Mobian Gitlab: https://gitlab.com/mobian1/issues/-/issues/181
I'm familiar with nmcli but not mmcli because I've only worked with Ether devices, not cell devices. ... last time I worked on a modem was back in the dial-up days
When I went searching on how to manually drive the modem, this doc on the modem was randomly linked but it doesn't actually discuss dialing in a carrier-specific way: https://xnux.eu/devices/feature/modem-pp.html. I'd like to manually drive the modem & network to troubleshoot and verify things, like whether a handshake is failing, or to get at a nice error back from the carrier, like: "IMEI not authorized".
FWIW: Signalboost says Cellcom uses:
3G : 700 MHz AWS 1 (CDMA2000). 800/ 1900 PCS MHz (CDMA2000). 4G : 1800 AWS MHz, Band 3 (LTE).
P.S. just found a doc by my carrier that says a) they already rolled out VoLTE and b) won't be phasing out CDMA. Assuming (a) is true, my Pinephone should be working, no?
https://www.cellcom.com/advancedcalling.html
... BTW, that doc's comment (b) on no EOL for CDMA flies at the face of what most folks say carriers are doing. These regional carriers own the towers and everything so I guess they can do what they want
I've recently switched to a non-MNVO, regional carrier -- Cellcom --, activated their SIM in my partner's Android to verify SMS/voice, but get no voice/txt/data from the Pinephone on their network. Both a rep in the store and a tech in chat confirmed that my carrier doesn't blacklist devices, but I'd be curious how to technically confirm that. (See modem comment below)
Can someone give pointers on troubleshooting non-supported carriers? I posted an issue just yesterday about how best to work with the modem & network setup to the Mobian Gitlab: https://gitlab.com/mobian1/issues/-/issues/181
I'm familiar with nmcli but not mmcli because I've only worked with Ether devices, not cell devices. ... last time I worked on a modem was back in the dial-up days
When I went searching on how to manually drive the modem, this doc on the modem was randomly linked but it doesn't actually discuss dialing in a carrier-specific way: https://xnux.eu/devices/feature/modem-pp.html. I'd like to manually drive the modem & network to troubleshoot and verify things, like whether a handshake is failing, or to get at a nice error back from the carrier, like: "IMEI not authorized".
FWIW: Signalboost says Cellcom uses:
3G : 700 MHz AWS 1 (CDMA2000). 800/ 1900 PCS MHz (CDMA2000). 4G : 1800 AWS MHz, Band 3 (LTE).
P.S. just found a doc by my carrier that says a) they already rolled out VoLTE and b) won't be phasing out CDMA. Assuming (a) is true, my Pinephone should be working, no?
https://www.cellcom.com/advancedcalling.html
... BTW, that doc's comment (b) on no EOL for CDMA flies at the face of what most folks say carriers are doing. These regional carriers own the towers and everything so I guess they can do what they want