Category: NEC SL2100
Last week, I’ve ran into an issue with VOIP busy signal. After troubleshooting, I’ve realized that the system has run out of voip channel resource. The system was configure for 8 sip trunks and 10 voip phones. We had configure this system with the SL2100 Main Chassis / CPU combo package (0x0x0). By default, it comes with 8 VOIP channels. Each VOIP phone uses a channel and each sip trunk uses a channel. In short, if you needs 8 sip trunks, make sure you have double the amount of channels which is 16 voip channels allocated for the system.