Search results
Results from the WOW.Com Content Network
Avaya 9600-series IP deskphones are 15 different desk handset devices that are used for unified communications. The phones are compatible with the Avaya Aura platform of products and IP office systems. [1] [2] The systems add high-quality voice codecs like the G.722 codec and new menus over older IP phone series. The 9620 includes 16 MB of ...
Avaya Distributed Multi-Link Trunking DMLT between 2 stacked 5530 switches to an ERS 8600 switch Distributed multi-link trunking ( DMLT ) or distributed MLT is a proprietary computer networking protocol designed by Nortel Networks , and now owned by Extreme Networks , [ 8 ] used to load balance the network traffic across connections and also ...
The 1120SA is a special-use phone which is certified for use by Sensitive Compartmented Information Facilities (SCIF) users, without an external device. [3] [4]The National Telecommunications Security Working Group (NTSWG) has approved the Avaya IP Phone 1120SA for deployment under the Director of Central Intelligence Directive (DCID 6/9), for VoIP and VoSIP (TSG-6 Type-acceptance CNSS Class-A ...
SIP trunking is a voice over Internet Protocol (VoIP) technology and streaming media service based on the Session Initiation Protocol (SIP) by which Internet telephony service providers (ITSPs) deliver telephone services and unified communications to customers equipped with SIP-based private branch exchange (IP-PBX) and unified communications facilities. [1]
Linux Netfilter's SIP conntrack helper fully understands SIP and can classify (for QOS) and NAT all related traffic Netopia Netopia supports ALG PF , built-in OpenBSD firewall PF can handle the NAT through the "static-port" directive and the bandwidth control through the built-in queuing system of SIP connections
A SIP provider (Session Initiation Protocol) is any telecommunications company which provides SIP trunking to customers, usually businesses. Many companies provide SIP "termination" (outbound calling) and "origination" (inbound calling, usually with a plain old telephone service (POTS) phone number, called a direct inward dialing (DID).
Avaya IP Phone 1140E in telecommunications is a desktop Internet Protocol client from 1100-series manufactured by Avaya for unified communications. The phone can operate on the Session Initiation Protocol (SIP) or UNIStim protocols. [1] The SIP firmware supports presence selection and notification along with secure instant messaging.
STUN is used in some of the sip phones to enable the SIP/RTP packets to cross boundaries of two different IP networks. A packet becomes unroutable between two sip elements if one of the networks uses private IP address range and other is in public IP address range. Stun is a mechanism to enable this border traversal.