[ltp] Modem UMTS

[Carles Pina i Estany]

Hello,

I have the T60 laptop with USB Sierra Wireless MC5720 Modem (I think).

Modem interface works fine, after load the module:
modprobe usbserial vendor=0x1199 product=0x6804

But when I try to establish the connection, it doesn't work... pppd
says:

sent [CHAP Response id=0x1 <1b8cc924e28d376b2d1996b0c78d7e6c>, name = "CLIENTE"]
rcvd [CHAP Success id=0x1 ""]
CHAP authentication succeeded
sent [CCP ConfReq id=0x1 <bsd v1 15>]
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
rcvd [LCP ProtRej id=0x1d 80 fd 01 01 00 07 15 03 2f]
Protocol-Reject for 'Compression Control Protocol' (0x80fd) received
sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]

[...]

sent [IPCP ConfReq id=0x1 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
IPCP: timeout sending Config-Requests
sent [LCP TermReq id=0x2 "No network protocols running"]
sent [LCP TermReq id=0x3 "No network protocols running"]

It is rare, because I ues ttyS0 to connect throught PCMCIA (and working 
fine), and ttyACM0 to connect throught Motorola phone, with similar
configurations (I mean, GPRS/3G). 

I am using same card and same configuration than PCMCIA... so should
work... any idea? Somebody is using it?

Thank you very much,

-- 
Carles Pina i Estany		GPG id: 0x8CBDAE64
	http://pinux.info	Manresa - Barcelona