Arp; Sip Server - Handcell DAG1000 Series User Manual

DAG1000/2000 Series FXS Voice Gateway User Manual

4.5.8 ARP

ARP brief introduction:
ARP is address resolution protocol. After configuring ARP, users can get physical address
through device IP address. Under TCP/IP network environment, each host is assigned a
32-bit IP address. But the message transmission needs to know the purpose the physical
address of the party. ARP is a tool that converts IP address into MAC address.
ARP configuration interface as follows:
Figure 4.5-9 ARP Parameters

4.6 SIP Server

SIP server introduction:
1 ） SIP server is the main component of VoIP network and responsible for establishing
all the SIP phone calls. SIP server also called SIP proxy server or registered server.
IPPBX and the soft-switch can act as SIP server role.
2 ） Usually, SIP server does not participate in the media process.
In SIP network, the media always using end-to-end to hand the consultation. In some
particular situation or business processing, such as "Music On Old", SIP server will
actively participate in the media negotiation. Simple SIP server is responsible only for
establishment, maintenance and cleaning conversation, don't interfere in call. While
relatively complex SIP server also called SIP PBX. It not only provides the basic call,
and basic conversational support, also offer plenty of business, such as: Presence,
Find-me, Music On Hold.
3 ） SIP server based on Linux platform, such as: OpenSER, sipXecx, VoS, Mera etc.
4 ） SIP server based on windows platform, such as :miniSipServer, Brekeke, VoIPswitch etc.
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