GP1260 User's SIP guide download

GP1266 User's IAX2 guide download

GP1266 User's SIP guide download

GP1260 SIP Firmware download:
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GP1266 IAX2 Firmware download:
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GP1266 SIP Firmware download:
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GP2266 IAX2 Firmware download:
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GP2266 SIP Firmware download:
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0.40 Release Download:

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0.36 Release Download:

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0.32 Release Download:

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Software API download: