Click
viewtopic.php?f=8&t=20199 (also refer to Points B and D from the second post below in that thread).
Follow the steps, step by step, down the list:
A. What brand and model modem are you using? Ensure it's in bridge mode if it's a gateway, hub, or modem/router combo. This can be important. Contact your ISP if you need help enabling bridge mode.
B.Visit
http://tplinkwifi.net, and log in with the username and password you set for your router.
i) Navigate to Security--> Basic Security --> ALG
ii) Disable "SIP ALG".
iii) Click "Save".
C. Login to your ATA.
i) Select "Advanced Settings" tab
ii) Change SIP Server to "voip4.freephoneline.ca:6060" without the quotation marks (voip4.freephoneline.ca:6060 helps to circumvent potential SIP ALG problems; and if you were temporarily IP banned, changing to a different sip server will resolve that problem, at least, temporarily)
iii) SIP Registration should be "Yes"
iv) Register Expiration needs to be 3600 seconds (otherwise you risk temporary IP bans)
v) Use Random Port should be "Yes"
vi) Change SIP Registration Failure Wait Retry time to 120 seconds (otherwise you risk temporary IP bans)
vii) NAT Traversal should be "Yes". No stun server needs to be entered.
viii) Keep Alive Interval should be 20 seconds
D. Update settings and Reboot.
This is always proper device reboot order:
a.Turn off modem, router and ATA (or IP Phone or close SIP App).
b. Turn on modem. Wait for modem to be fully up and running.
c.Turn on router.
Wait for modem to be fully up and transmitting data before turning on router.
d. Turn on ATA (or IP Phone or open SIP app) only after the router is fully up and running.
The SIP device (ATA) should be the last device powered on in the device chain.
E. Log back into your ATA. Check registration status. Navigate to the Status tab. Do you see "Registered"?
F. What does the LED light pattern on the ATA indicate at this point?
https://www.voipsupply.com/downloads/dl ... _guide.pdf (page 14)
RED LED indicates not normal status
Button flashes every 1 second If Ethernet link is down
Button flashes every 2 seconds. (if DHCP is configured) DHCP Failed or WAN No Cable
Button flashes every 4 seconds. (if SIP server is configured) HT–286 fails to register
Button flashes every 6 seconds. Firmware Upgrading
Button flashes briefly No STUN responses
Red light steady. Device Malfunctions
GREEN LED indicates normal status
Button flashes every 2 seconds. Message Waiting Indication
Button flashes at 1/10 second. RINGING
Button flashes every second. RINGING INTERVAL
Green light steady. In Conversation
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Please note that only one registration per FPL account is allowed at any time. When there are multiple devices/softphones using the same account, only the most recent registration is valid. The previous device will lose
registration (despite what the ATA's registration status indicates, since 3600 seconds is a long time to update registration status), and incoming calls will not work on it. Registration is required for incoming calls but not for outgoing calls.This is especially important to consider if someone else is using your SIP credentials (username and password) that are found after logging in at
https://www.freephoneline.ca/showSipSettings (or if you're trying to register your FPL account with a smartphone SIP app, with another device, or, in this case with an additional FXS Port or Line on your Grandstream ATA). This is also important to consider if you're using Freephoneline's desktop application (don't have it running while using your ATA with the same FPL account). Additionally, keep in mind that if someone else is also attempting to register the same SIP credentials on another device where you live,
too many registration attempts with a short interval can result in a temporary IP ban. If you ever see a SIP user agent that you don't recognize after logging in at the above link, someone else is using your credentials (possibly, you've been hacked in that scenario).