I'm configuring a 2811 CCME with 2 WIC ISDN double ports and I'm configuring a GSM Quescom gateway to send all the calls direct to mobile phones from IP phone to Quescom through 2811 router. Now if I call a phone in my city, country, state and etc. I use only ISDN ports and if I call a mobile phone I use only GSM gateway. Now I ask you if GSM gateway has broken or GSM cell is down is it possible to call through ISDN line automatically? Which commands have to use to configure 2811 to call another device (WIC Interface) when the default device (Quescom) is not avaible? Thank You for help
Antonino, you have to be confident about your quescom device. either it works and is reliable, or it doesn't. rememeber to configure "max-conns 1" unde the dial -peer in case it ihas only 1 sime, and use a trunk-group configuration with an higher preference to send calls via PSTN as secondary preference.
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