| Manufacturer |
Model |
Issues |
| Apple |
Airport Extreme Wireless G Model |
Doesn’t allow phones to Register |
| Apple |
Airport Time Capsule |
Registration Issues |
| Arris |
TM502G |
Registration Issues |
| Asus |
RT-N10, RTN66U |
DC, No SIP ALG option |
| Belkin |
F5D, F6D, F7D, FDS, and F9K Series, Any |
Intermittent One Way Audio |
| Cisco |
DPC3939 |
SIP ALG cannot be disabled and still has issues after bridging |
| D-Link |
DIR-601 |
One-way audio |
| D-Link |
DIR615, DIR600 |
On Firmware 3.X, SIP ALG must be enabled for phone to register. When enabled, it mangles SIP traffic. |
| D-Link |
DIR-628, DIR-825, DIR-835 |
Current firmware version is Incompatible with SIP |
| D-Link |
DIR655 Rev B (or newer) |
SIP problems |
| Linksys |
BEFSR Series (BEFSR41, BEFSR81, BEFSRX1, etc.) |
Phones Can’t Register or Transfer |
| Linksys |
E3000 |
No-way audio |
| Linksys |
RVS4000 |
One Way Audio after Attended Transfers |
| Linksys |
WRT110N, WRT120N, WRT160N, WRT320N, WRT350N |
Dropped calls, Transfer issues, Registrations issues, No SIP ALG option |
| Linksys |
WRT55AG |
Various issues. |
| Linksys |
WRT54Gv1-4, WRT54G2, WRT54GL |
Various, Doesn’t allow phones to Register or Transfer |
| Linksys |
WRTU54G-TM v1 |
Various issues. |
| Linksys |
WRV54G |
Various issues. |
| Linksys |
WRV200, WRV210 |
Registration, loss of audio after transfers, and dropped calls |
| Linksys |
WRV210 |
Various issues. |
| Netgear |
CG814WCOM, CG814WG, CG814WT |
Modem/Router Gateway w/ Proprietary Firmware |
| Netgear |
CGD24G |
Modem/Router Gateway w/ Proprietary Firmware, CD, 1WA |
| Netgear |
FVS318 |
SIP ALG cannot be disabled, various quality problems. Avoid |
| Netgear |
CG3000 |
Modem/Router Gateway w/ Proprietary Firmware |
| Netgear |
WGR614 v1-v7 |
No SIP ALG option. Registration issues. |
| Netgear |
WGT624 |
one-way/no-way audio and dropped calls. |
| Netgear |
WNDR3700 v2 |
Failed registrations. Stripped nonce. |
| Netgear |
WNDR4000 v1 |
Transfer issues, Dropped calls, Dropped calls on hold |
| Netgear |
WNR1000 v1 |
No SIP ALG option. Registration issues. |
| Netgear |
WNR2000 v.1 |
Incompatible, SIP Ringing message never arrives |
| Netgear |
WNR2500 |
Registration issues, one-way audio |
| Netgear |
WNR3500 |
Incompatible with SIP |
| Netgear |
WNR834B v.2 |
Drops Transfers (Attended) |
| Technicolor |
TC8717T |
|
| Technicolor |
TC8717C |
|
| Technicolor |
TC8715D |
|
| Tenda |
Any |
Various issues. |
| Thomson |
DWG-855 |
Various issues |
| Thomson |
TG585 v8 |
Various issues |
| Thomson |
TG587n v2-v7 |
Various issues |
| TP-Link |
TL-WR741N v2 |
Various issues. |
| TRENDnet |
TEW-639GR |
Various issues. |
| TRENDnet |
TEW-652 |
Various issues. |
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