Suitable for 1-2 phones
This router is compatible and suitable for 1-2 SIP phones. Appears to have problems with 3 or more SIP phones caused by NAT issues. Use DDWRT firmware instead in this case if hardware revision allows for this.
**All routers and firewalls need to have the correct ports forwarded and Whitelisting configured for VOIP service, please click here for more information.