I am adding a VoIP phone and having trouble connecting by Wi-Fi or Ethernet. The phone service provider gave me the following instructions, but I don’t see an address to log into. Where do I log in and are the instructions correct? The modem is an Arris 3635.
Just to follow up regarding connecting your VoIP phone. To rule out anything something else, please log into your router. To do that, take a look at the back of your router and it should have the login web address, the username and the password.
Once you have logged in, look for a tab labeled Advanced, NAT or Firewall. Then look for SIP- ALG and/or SIP Helper. Once you find it, disable it and make sure you click SAVE/APPLY. Then reboot your router and your Yealink phone.
If after a reboot, the phone is still not registering and it is displaying NO SERVICE, I would recommend that you call SparkLite customer service and advise them you need to disable SIP-ALG so you "can use a VoIP phone — it’s blocking SIP registration."
