User's Manual

Avaya Branch Gateway Manager 10.0 Page 243
15-601011 Issue 29r (Friday, November 02, 2012)B5800 Branch Gateway
Configuration Settings: Line
5.4.11.3 Transport
Usability
· Mergeable: These settings are not mergeable. Changes to these settings will require a reboot of the system.
· ITSP Proxy Address and Calls Route via Registrar are mergeable.
Configuration Settings
· ITSP Proxy Address: Default = Blank
This is the SIP Proxy address used for outgoing SIP calls.
· The address can be specified in the following ways:
· If left blank, the ITSP Domain Name is used and is resolved by DNS resolution in the same way as if a DNS
address had been specified as below.
· An IP address.
· A list of up to 4 IP addresses, with each address separated by a comma or space.
· The addresses can include an indication of the relative call weighting of each address compared to the
others. This is done by adding a wN suffix to the address where N is the weighting value. For example, in
the list 213.74.81.102w3 213.74.81.100w2, the weighting values assigns 1.5 times the weight of calls to
the first address. The default weight if not specified is 1. A weight of 0 can be used to disable an address.
Weight is only applied to outgoing calls.
· If the Calls Route via Registrar setting below is enabled, the weighting is applied to registrations rather
than calls.
· A DNS address, for example sbc.example.com.
· The DNS response may return multiple proxy addresses (RFC 3263). If that is the case, the system will
resolve the address to use based on priority, TTL and weighting information included with each address.
· A load balancing suffix can be added to specify that multiple proxy results should be returned if possible,
for example sbc.example.com(N). where N is the required number of addresses from 1 to 4.
· This field is mergeable. However, no more than 4 IP Addresses should be in use at any time. So, if the combined
new and old address settings exceed 4, the new addresses are only phased into use as transactions in progress on
the previous addresses are completed.
· Network Configuration
These settings are applied to all calls using this SIP line.
· Layer 4 Protocol: Default = UDP
This field sets which protocol the line uses for sending and receiving SIP packets. The options are UDP or TCP.
The options are UDP, TCP, TLS or DNS. In Release 6.2+, the default setting is TLS when the Media Security
option for the SIP line is set to Enforce or Prefer.
· Use Network Topology Info: Default = LAN1
This field associates the SIP line with the Network Topology settings (System | LAN1 | Network Topology )
settings of the LAN interface. It also applies the LAN interfaces DiffServ Settings (System | LAN1 | VoIP ) to
the outgoing traffic on the SIP line. If None is selected, STUN lookup is not applied and routing is determined by
the system's routing tables.
· Send Port: Default = 5060
This field sets the port to which the system send outgoing SIP calls. In Release 6.2+, the default setting is 5061
when the Media Security option for the SIP line is set to Enforce or Prefer.
· Listen Port: Default = 5060
This field sets the port on which the system listens for incoming SIP calls. In Release 6.2+, the default setting is
5061 when the Media Security option for the SIP line is set to Enforce or Prefer.
· Explicit DNS Server(s): Default = 0.0.0.0 (Off)
If specific DNS servers should be used for SIP trunk operation rather than the general DNS server specified or obtained
for the system, the server addresses can be specified here.
· Calls Route via Registrar: Default = On
If selected, all calls are routed via the same proxy as used for registration. If multiple ITSP proxy addresses have been
specified, the weighting for those addresses is applied to the registrations.
· Separate Registrar: Default = Blank
This field allows the SIP registrar address to be specified if it is different from that of the SIP proxy. The address can
be specified as an IP address or DNS name.
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