Differences

This shows you the differences between two versions of the page.

--- routersthatshouldnotbeused [2022/06/01 18:19] – jim
+++ routersthatshouldnotbeused [2023/06/26 17:48] (current) – jim
@@ Line 3: / Line 3: @@
 ====Routers That Should Not Be Used====
+**Cellular Modems and Modem routers will not work!!!!**
+**Mesh Routers -** Mesh routers are great for lots of things, but VOIP is absolutely not one of them.  Mesh systems MUST be used in Access Point Mode with a traditional router or they will not work.
 **Comcast home version with wireless -** have them change to Comcast business version. The home version with wireless gets used by Comcast to also support their open Wi-Fi network (Hotspot) and this can lead to overutilization and voice quality issues. It is reported that it can be disabled, instructions are here [[http://bgr.com/2014/06/11/how-to-disable-comcast-xfinity-wi-fi-hotspot/]].    If this does not work then a call to Comcast customer service is needed.
+**Comcast CBR-T Modem Router -** This unit will not work out of the box and will not work as a DHCP router.  In order to use this device, Comcast must place the unit in IP Pass-through mode, and disable:\\
+(sp)(sp)(sp)1. Firewalls\\
+(sp)(sp)(sp)2. WiFi Antennas\\
+(sp)(sp)(sp)3. DHCP\\
 **Motorola SBG-650 -** (used by Time Warner). The problem with this one is that under high load, it starts buffering (or even freezing) packet output and it doesn't seem to be a way to set QOS to still allow RTP so it will end up with voice quality issues.
@@ Line 89: / Line 98: @@
 Full documentation at [[http://docs.fortinet.com]] then pick FortiOS for the version on your device, then VoIP solutions: SIP.\\
-**Cisco - 800 series -** To disable the NAT services for SIP in IOS, just run these commands:
+**Cisco - 800 series -**
-      no ip nat service sip tcp port 5060
+To disable the NAT services for SIP in IOS, just run these commands:
-      no ip nat service sip udp port 5060
+no ip nat service sip tcp port 5060
+no ip nat service sip udp port 5060
 **Juniper/Netscreen - SSG Series -**
-      To disable SIP ALG:
+To disable SIP ALG:
-      In the Web interface: Security -> ALG
+In the Web interface: Security -> ALG
 **Asus RT-AC66U -** with their most current firmware enables their SIP ALG by default.
@@ Line 129: / Line 139: @@
 **Verizon FiOS G1100 & G3100 -** This modem has SIP ALG enabled by default and Verizon has not provided a method to disable this feature. Verizon has also not released if it can be disabled by Verizon itself. The best recommendation at this time is not to use this modem. White page link  [[https://hosting.intermedia.net/support/kb/default.asp?id=3343]].
+originally published by: [[https://voipdocs.io/en/articles/246-routers-with-known-issues]]