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Please note that we are closed from Friday 29th March. You can still purchase items over this period, items will be dispatched from Tuesday 2nd April. See more.
After unreliable Caller ID (BT) with an OpenVox Analogue Card on Asterisk, the Sangoma card works perfectly, delivering Caller ID on every call. The FXS and FXO cards are more expensive than the OpenVox equivalents, but you get two ports with each card.