GSM PABX with SIM Card: 8 Extensions Without a Landline
If your premises has no fixed telephone line — or the one you have is expensive to install and slow to repair — a GSM PABX solves both problems at once. The MS108-GSM puts a SIM card trunk, one PSTN line and eight extensions in a single unit, so ordinary analog phones on desks ring through a mobile network instead of […]