Configuring Network Settings
4-22 41-001190-01 Rel. 1.1, Rev. 00
AastraLink Pro 160 Administrator Guide
• HTTP Port Range
Specifies the HTTP port range (offset from the HTTP Port Start) used to
support remote office IP phone UI and Web UI connections. Default is 100.
If UPnP is not enabled, then the only HTTP port that must be forwarded from
the public/external side of the network to the AastraLink is the single port
specified in the HTTP Port Start field. (If you disable UPnP, then HTTP Port
Range is automatically disabled as well.)
• SIP Port Start
Specifies the base port number for SIP connections (default = 5060). This port
must be forwarded to the AastraLink from the public/external side of the
Internet gateway/router for SIP trunk and remote office calls to succeed. If
UPnP is enabled, then port forwarding is attempted automatically.
• SIP Port Range
Specifies the number of ports to attempt SIP connections (default = 1, port
5060 only).
•RTP Port Start
Specifies the public network first RTP port of the range on the router that the
AastraLink uses to communicate with IP phones for external SIP calls.
Default is 3000. This is the start of the range of UDP ports (from 'RTP Port
Start' to 'RTP Port Start + RTP Port Count' that must be forwarded to the
AastraLink from the public/external side of the Internet gateway/router for
SIP trunk and remote office calls to succeed. If UPnP is enabled, then port
forwarding is attempted automatically (see the RTP Port Range parameter).
• RTP Port Range
Specifies the RTP port range (offset from the RTP Port Start) used to support
the voice path for remote office IP phones and SIP trunk calls. Default is 300.
UPnP will attempt to allocate and forward the number of external ports
specified by RTP/RTCP Port Count. Forwarded ports lie within the range:
RTP Port Start through (RTP Port Start + RTP Port Range).
