Converting Analog signal to Digital

Hello FreePBX Community,

I`m in a lookout for device similar to SPA3102 maybe something newer model to convert my Analog signal to Digital. I cannot ask the provider to make my line digital because the support is not great and i like to make it happen with a device as mentioned above. The potential problem with this device is very old and i dont know anything with newer model i can achieve this. could you help me with a list of devices that can support converting analog to digital ?
Preferred devices are Cisco or Grandstream ( they are more easy for me to find them in my country )

Anyway i have server 1U with PCI slots available maybe there is Sangoma device that can help me here also ?

Looking forward for your suggestions

Hi Igor,

Im using this device at Asterisk side. and it work well…

OpenVox iAG800 V2 Series Analog VoIP Gateway FXS/FXO VoIP Gateways - OpenVox

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Current Grandstream product is HT813; an older model is HT503. Both are 1 FXS + 1 FXO, just like SPA3102. Also consider Obihai OBi212 (current) or OBi110 (old).

AFAIK, there is no current Cisco product with fewer than four FXO ports, so it would likely be too expensive.

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Thank you all for replaying. I think that i will buy the HT813 since it could be relatively easy to order in my country