I can't unlock the phone
SOURCE: GrandStream GXP-2000 not booting
If both phones are showing the same symptoms then it probably means that your DHCP server is down or not configured properly. If the phones are on a separate VLAN and you have recently upgraded or replaced your network switch then it could be misconfigured as well - specifically it may require you to configure a DHCP helper address.
SOURCE: does grandstream gxp 280 support vonage
Hi,
Yes it supports.
SIP Account Name: Vonage
Phone Number: xxxxxxxxxx (enter your Vonage phone number)
Authentication ID: xxxxxxxxxx (enter your Vonage phone number)
Authentication Password: xxxxxxxx (enter your Vonage Authentication Password, this can be Provided to you by Vonage. Please remember that the password is case sensitive.)
SIP Domain: leave blank
Proxy Address: sphone.vopr.vonage.net
Port: 5061
Outbound Proxy: sphone.vopr.vonage.net
Port: 5061
Local Port: 5061
Register Timer: 3600
Codec: Auto
Pkt. Time: Default
Out of Band DTMF: On
-Karthik.
SOURCE: does grandstream gxp 280 support vonage
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