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Router Make | Router Model | Incompatibility Rationale/Problems |
---|---|---|
TP-Link | Archer C7/C9 (AC1750/AC1900, respectively) | No exposed SIP ALG toggling option in web interface |
Apple | A1354 (4th Gen Airport Extreme) | No exposed SIP ALG setting, spottiness with handset stability |
Apple | A1408 (5th Gen Airport Extreme) | No exposed SIP ALG setting, spottiness with handset stability |
Apple | A1521 (6th Gen Airport Extreme) | No exposed SIP ALG setting, spottiness with handset stability |
Comcast | DPC3939B | SIP ALG cannot be disabled, SIP traffic on port 5060 may be blocked on the router, DNS may need to be manually set to Google DNS (8.8.8.8, 8.8.4.4) for Polycom handsets as temporary work around |
Netgear | Orbi Series | Orbi's mesh network may cause connection issues for VoIP devices. |
Manufacturer Specific Notes
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As noted above, SIP ALG is just one piece of the larger whole that is your home network. If disabling SIP ALG does not help resolve problems with your NocTel handset set up at home, a strong next step to resolution is to contact your Internet Service Provider and inquire if they allow the common ports used for VoIP or have possibly had any changes to allowing VoIP traffic. (List of ports used by NocTel - Polycom-based)
Small and Medium Business Combo Modems
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