UCAP - Karel
Transkript
UCAP - Karel
SYSTEM FEATURES UNIFIED COMMUNICATIONS APPLICATION PLATFORM - UCAP UCAP SYSTEM FEATURES 1. UCAP Collaboraton and Communcatons System System Applcaton Servces • SIP sesson manager, an optonally geo-redundant and load- sharng call control system • Unfed messagng and personal auto-attendant applcaton • Conferencng applcaton for audo conferencng & collaboraton • Instant messagng (IM) and presence server • SIP trunkng server for connecton to the outsde world • Confguraton and admnstraton applcaton wth Web GUI • SIP presence server (RLS) for lne state presence • Basc meda servces for call park, musc on hold, pagng and auto-attendant • Meda relay servce for NAT traversal • Call detal record (CDR) collecton & processng server • WebCM server for sendng CDR data to advanced CDR processng and bllng applcaton • Thrd party call control (3PCC) server usng REST nterfaces • Process management server for centralzed cluster management • Devce auto-provsonng server • Alarm and notfcaton server • Statstcs server Requred Hardware and Operatng System • Karel UCAP runs on standard servers • CentOS 5 operatng system, 64 bt edton • Generc hardware requrements dependng on number of users (note that actual hardware confguraton depends on customer requrements and scale): <150 users: QuadCore processor 2,5 GHz, 4 MB Cache, 1333 MHz FSB, 4 GB RAM, 160 GB dsk <500 users: XEON QuadCore processor 2,4 GHz, 1333 MHz FSB, 8 GB RAM, 2x300 GB dsk >500 users: 2 x XEON Quadcore processor 2,4 GHz, 1333 MHz FSB, 16 GB RAM, RAID 5w/ 3x300 GB SAS dsk (hot swap). Dependng on scale, load-sharng cluster wth several nodes can be necessary 2. SIP Sesson Manager Core Telephony System Features • • • • • • • • • • • • • • • • • • • • Transfer (consultatve & blnd) Call coverage Call hold / retreve Consultaton hold Musc on Hold for IETF standards complant phones User-specfc MoH fles Admn or user confgurable BLF presence and soft-keys Uploadable musc fle 3-way / 5-way vdeo and voce conference on the phone Call pckup (global and drected call pckup) Call park & retreve Hunt groups Intercom wth auto-answer (b-drectonal) SIP URI dalng CLID (Callng Lne Identfcaton) CNIP (Callng Party Name Identfcaton Presentaton) CLIP (Call Lne Identfcaton Presentaton) CLIR (Call Lne Identfcaton Restrcton) Per gateway CLIP manpulaton Call watng • • • • • • • • • • • • • Do not Dsturb (DnD) Forward on busy, no answer, do not dsturb Multple lne appearances Multple calls per lne Multple staton appearance Outbound call blockng Clck-to-call Redal Call hstory (daled, receved, mssed) Auto off-hook / rng down Incomng only Confguraton of ndvdual Speed Dal soft-keys Auto-generaton of drectory nformaton Performance • Unlmted number of smultaneous calls (voce, HD voce, vdeo) -depends only on LAN / WAN bandwdth • 54,000 BHCC (SIP) per server node (15 cps per node). System scales lnearly by addng dstrbuted server nodes • Up to fve-way redundant confguraton wth seamless load-sharng at the transacton level and all nodes centrally managed • Up to 20,000 users. Remote Branch Support • Centralzed deployment: Branch only provdes phone / PC moble clents and optonally PSTN gateways for falover, reduced WAN bandwdth consumpton or emergency calls • Dstrbuted deployment: Branch provdes full call server wth SIP ste-to-ste dalng between offces • Branch offce locatons can be defned n the admnstraton system wth full flexblty • Users, phones, gateways, sesson border controllers (SBCs) and specfc system servces can be assgned to a branch locaton • A PSTN gateway can be avalable for calls that orgnate n a specfc branch only or for general use wth full falover • Source routng allows call routng based on locaton (branch local calls are routed through local gateway preferably) • Alternatve survvable branch confguraton possble wth Audocodes gateways SAS functonalty • Certan UCAP servces can be deployed n the branch as part of the cluster (e.g. conferencng) for scale or redundancy • Branch nodes can be redundant Hgh Avalablty and Reslency • Optonally fully redundant call control system wth load-sharng and redundancy at the transacton level that provdes a geo-redundant SIP sesson manager • True load-sharng based on the prorty polcy set n the DNS nfrastructure for SIP DNS SRV records • No dropped or faled calls upon a server outage. Meda does not traverse the server and sgnalng auto-recovers through dynamc falover to an alternate node • Real-tme synchronzaton of transacton state nformaton between all nodes usng a dstrbuted data replcaton mechansm • Unform user, credental, permsson and call routng nformaton avalable to all nodes • Automatc recovery after server falure. Node that comes back seamlessly enters load-sharng mode • Reports on load dstrbuton between servers 3. Confguraton and Admnstraton Superor Voce Qualty System Admnstraton Features • Peer-to-peer meda routng for best qualty (meda not routed through the UCAP server) • Unmatched voce qualty wth lowest delay and jtter • Support for any codec supported by the clents (phone or gateway), ncludng vdeo • Support for HD Voce wth wdeband codecs • Peer connecton codec negotaton (no transcodng requred) • Conferencng, auto-attendant and vocemal support HD voce wth transcodng f necessary • • • • • • • • • Flexble Dalplan • Easy to use GUI based dal plan manpulaton • Tme-based dalng rules wth dfferent admnstrator-defned schedules • Rules-based least cost routng • Dynamc call routng based on user's IM presence status • Drectly route to vocemal on IM status Do-not-Dsturb (DnD) • Dynamcally add forwardng destnatons based on user’s presence status • Automatc gateway redundancy and fal-over • Specfc emergency call routng • Permsson-based rules • Prefx manpulaton • Dalplan templatng for nternatonal dal plans • Flexble nternal extenson length • Confgurable rng tones for nternal and external calls • ENUM support for publc & prvate ENUM based call routng • Specfc rule for ste-to-ste call routng between SIP systems • Redrector plugns allow any magnable dal rule to be added as a plugn, ncludng based on drectory lookups • • • • • • • • • • • Browser based confguraton and management GUI based certfcate management LDAP / Mcrosoft Actve Drectory ntegraton SOAP Web Servces nterface CSV mport and export of user and devce data Admnstraton of Instant Messagng (IM) and Presence settngs Integrated backup & restore Scheduled backups Dagnostcs Dsplay actve regstratons & actve calls Dsplay job status Status of servces Snapshot logs for debuggng Loggng (customzable log levels, message log per servce) Doman alasng Support for DNS SRV Support for DNS NAPTR based call routng Automatc restart after power falure Server statstcs (ntegrated graphs and SNMP) SIP Trunk statstcs Logn hstory report (successful and unsuccessful) Automated testng of network servces (DHCP, DNS, NTP, TFTP, FTP, HTTP) for proper confguraton Doman admnstraton Installaton and management of language packs for localzaton PostgreSQL database for confguraton and CDR data Drectory Server & LDAP Integraton • Ablty to confgure SIP URI based call routng to other domans • Specfc Sesson Border Controller (SBC) selecton for call routng • Confguraton of natve NAT traversal wth optonally redundant meda anchorng f necessary • Meda anchorng supports voce and vdeo for any codec • IM / Presence support through frewall • UCAP allows for ntegrated user management usng an exstng drectory servce over an LDAP nterface • Mcrosoft Actve Drectory ntegraton • LDAP bnd authentcaton and authorzaton for centralzed password management and sngle sgn-on • Upload of user profle nformaton wth a flexble mechansm that allows mappng LDAP schema felds to UCAP profle felds • Scheduled re-sync wth the corporate drectory • Global address book (GAL) synchronzaton wth the drectory server • TLS based secure connecton over LDAP Enterprse Level Securty User Management • All outbound calls authentcated to prevent toll fraud or unauthorzed calls • Authentcaton and authorzaton based on user’s permssons sustaned durng node outage (e.g. survvable branch scenaro) • Secure user password management wth auto-generated complex SIP passwords for maxmum securty • Embedded frewall wth SIP packet rate lmtng capablty • DoS attack hardenng • HTTPS secure Web access for admnstrators and users • TLS based sgnalng for SIP trunks • TLS connecton to clents, ncludng clents for remote users • Optonal PIN request to enter conference brdges • Web Servce API over secure connecton and authentcated usng user credentals • Certfcate management for self-algned and thrd party certfcates. Auto-generates CSR requests • User management wth ease: Create a user, provson a phone and assgn a lne n only three clcks • Numerc or alpha-numerc user IDs • User PIN management (Web GUI or TUI) • Alasng faclty (numerc and alpha-numerc alases) • Extenson and alas unqueness assurance • Management or auto-assgnment of user's IM ID and dsplay name • Automatc IM buddy lst creaton based on user groups • Granular per user permssons • Call permssons: 900 Dalng Internatonal Dalng Long Dstance Dalng Moble Dalng Local Dalng Toll Free Dalng Forward Calls External Drect Internet Callng • System permssons: User has vocemal nbox User lsted n auto-attendant drectory User can record system prompts User has admnstrator access User allowed to change PIN from TUI User can use Mcrosoft Exchange 2007/10 VM User has a personal auto-attendant User can subscrbe to presence • Custom permssons as defned by the admnstrator • Supervsor permsson for groups (e.g. Call Center supervsor) • Management of user contact record (user profle) Comprehensve profle data Work and home address In-buldng locaton nformaton Assstant nformaton • Support for avatar ncludng support for Gravatar • SIP password management for maxmum securty • User groups wth group propertes • Per user call forwardng (fnd me / follow me) To local extenson, PSTN number, or SIP address Based on user or admnstrator defned tme schedules Parallel or seral rng Allows defnton of rng tme before tryng next number Allows several forwardng destnatons Fnd me / follow-me confguraton usng the Web user portal • Extenson pool wth automatc assgnment • Per user Caller ID (CLID) assgnment • Per user Caller ID blockng • IM notfcaton settngs Conference entry and ext messages Alertng user when someone s leavng a vocemal message User Self-Control • Every user on the system gets access to a personal Web user portal for self-management and control • Management of unfed messagng (vocemal) • Confguraton of unfed messagng preferences • Access to vocemals and conference call records • Flexble tme based fnd-me / follow-me • Management of personal profle data ncludng avatar • Personal call hstory and mssed calls • Personal phone book, speed dal and presence management • Contact upload from GMal and Outlook • Clck-to-call • Indvdual phone management • Personal auto-attendant confguraton • Dynamc conference brdge control wth partcpant mute / unmute, nclude / solate, nvte, dsconnect functons • Management of personal IM account • Personal MoH musc upload and preferences Authorzaton Codes • Authorzaton codes allow users to make prvleged calls from any phone enterng a secret code • Codes can be assgned to any user • IVR servce allows easy authentcaton Drectory, Speed Dal, Softkeys • Automated generaton of drectory nformaton per user or per user group ncludng a global address book (GAL) • Support for complete contact nformaton and user profle ncludng avatar • Creaton and management of many dfferent drectores (per user, per user group, per locaton, etc.) • Upload of contacts from GMal and Outlook • User management of drectory nformaton • Automated provsonng of drectory nformaton nto user's phones • Allows addng contacts to the drectory from a .csv fle (Excel) • User confgurable speed dal (nternal / external numbers, SIP URIs) • Speed dal generated server sde and backed up • Auto-provsonng of speed dal to phones • User confguraton of Busy Lamp Feld (BLF) to montor presence of other users or phones (e.g. attendant console) Installaton & Upgrades • Automated nstallaton from CD ISO for OS and UCAP applcaton • Graphcal confguraton wzard for system confguraton after nstallaton • Certfcate generaton (allows nstallng a sgned certfcate f desred) • Standard Lnux package management wth yum • Optonal auto-confguraton of DNS, DHCP, NTP, FTP, TFTP, HTTP servers • Desgned so that no Lnux admnstrator sklls are requred for nstallaton and confguraton Centrally Managed Cluster • Automated nstallaton and confguraton of a dstrbuted system wth specfc server roles • Automated and central confguraton of a hgh-avalablty redundant system • Allows for dedcated server hardware for conferencng, vocemal and call control • All confguraton for remote servers s centrally generated and dstrbuted securely Plug & Play Devce Management • • • • • • • • • • Auto-regstraton of Karel IP phones smplfes nstallaton Plug & play management of phones Plug & play management of PSTN gateways Auto-generaton of phone / gateway confguraton profle Auto-pckup of profle by phone / gateway Centralzed management of all the parameters Centralzed backup and restore of all the confguratons Auto-generaton of lnes by assgnng users to devces Devce group management and propertes Frmware upgrade management Managed Devces • Karel IP phones • Polycom SoundPont all models (IP 301, 320, 330, 430, 450, 501, 550, 560, 601, 650, 670) • Polycom SoundStaton IP 5000, 6000, 7000 SIP • Polycom VVX-1500 vdeo phone (release 4.0.2) 4. Unfed Messagng Alarm and SNMP MIBs Unfed Messagng (Vocemal) • SNMP traps can send alerts to network montorng systems for mmedate attenton • All alerts can also be e-maled or sent to SMS devces (va an SMS gateway) • Alertng ncludes ablty to alert on-ste staff of emergency number beng daled • sure approprate • Alarm groups allow admnstrators to make staff s notfed • Hstorc alarms can be accessed over admnstrator Web GUI • Integrated unfed messagng system • Support for 20.000+ nboxes, lmted only by dsk space • System requres about 1MB dsk space per mnute of vocemal recordng • Performance tested up to 400 smultaneous calls (ports) on dual core server hardware • Unfed messagng servce can run on dedcated server hardware, or can be co-located wth other UCAP components • Message store can be NFS mounted • Localzed per user by nstallng language packs • Browser based user portal for unfed messagng management • RSS feed for new messages • Message Watng Indcaton (MWI) • User confgurable dstrbuton lsts • Group and system dstrbuton lsts • Emal notfcaton of new vocemal messages wth or wthout the message attached as a wav fle • Forwardng of message as a wav fle • Supports several parallel notfcatons • Per user selectable templates for emal format when forwardng vocemal to accommodate smartphone message formats • Manage folders: Folders for message organzaton • Manage greetngs: Multple customzable greetngs • Remote vocemal access usng a phone • Auto-removal of deleted messages • Daly report on dsk usage sent to admn • IMAP ntegraton can be used for all emal systems that support all the necessary IMAP prmtves (e.g. Mcrosoft Exchange) • Vocemal messages automatcally appear n user’s nbox • IMAP back-end connecton: Acts as an IMAP clent nto Mcrosoft Exchange and other compatble emal systems • User manageable credentals for IMAP federaton • Properly controls MWI on the phone when message s "read" usng the emal clent Call Detal Records (CDR) • • • • • • • • • • • Call State Events (CSE) collected for all sgnalng actvty Background processng of CSEs nto CDRs All data stored n a database at all tmes Flexble report generaton usng Jasper Reports, bult-n Supports redundant call control Determnes and records call type nformaton Internal / external calls Calls to specfc UCAP servces Collates call legs nto sngle CDRs SOAP / REST Web Servces access to CDR data Drect database access for thrd party reportng applcatons Basc CDR reportng over UCAP admnstrator Web GUI: Hstorc Call Detal Record reportng n near real-tme Montorng of currently actve (on-gong) calls Export of actve and hstorc CDRs to Excel (.csv fle) Indvdual call hstory per user n the user portal Advanced CDR reportng & bllng usng external Karel WebCM applcaton (optonal): External WebCM tool can be used for advanced CDR reportng and bllng WebCM applcaton runs on another standard server hardware CDR data s sent to WebCM applcaton by WebCM servce on UCAP Web-based access to WebCM GUI Can work wth multple UCAP systems More than one user can use the system at the same tme Multple user account types Advanced search over CDR data Reports can be delvered automatcally by emal. Daly, weekly and monthly report schedules can be defned Data presented n web nterface can be exported to CSV, Excel, PDF or XML formats Hstograms graphcally present dstrbutons of calls wth respect to call type, hour, day of week, day of month, and month Tarffs can be created based on extenson groups, trunk groups and the operator Perods of valdty can be defned for the tarffs Exstng records can be modfed and costs can be recalculated Calls can be prced wth respect to the prefx of called number Internal calls can be prced as well Call records can be archved Lcensng • A securty devce s used for lcensng requred features • Securty devce connects to prmary server over USB, and must stay connected for operaton of lcensed features • Lcense and securty devce nformaton can be accessed and new keys can be entered over admnstrator Web GUI • Only one securty devce s needed n redundant systems Personal Auto Attendant • Personal greetng • User confgurable personal auto-attendant for every user on the system • Up to 10 ndvdual forwardng choces (keys 0 through 9) • User can record greetng that corresponds to key confguraton • Indvdual zero-out to a personal assstant or receptonst • Indvdual selecton of language based on nstalled language packs Integraton wth Mcrosoft Exchange • Dal plan ntegraton wth Mcrosoft Exchange 2007/2010 Unfed Messagng server • Allows mxed envronment wth groups of users on Exchange or UCAP Unfed Messagng server • Permsson-based selecton of Unfed Messagng server per user or per user group • Automatc dal plan routng to Exchange Unfed Messagng server enables use of speech-based Exchange 2007/2010 5. Instant Messagng and Presence Instant Messagng & Presence • Standard XMPP based IM and presence capablty that scales to enterprse requrements • Supports standard XMPP based clents • Auto-confguraton of user's IM accounts • Auto-confguraton of IM user groups • Personal group chat room for every user wth easy escalaton from group chat to a conference call • Federaton of phone presence wth IM presence • Customzable "on the phone" presence status message • Dynamc call routng based on user's presence status • Message archvng and search • Server-to-server federaton • Clent-to-clent fle transfer • Integraton of user profle nformaton and avatar Presence & IM Federaton • UCAP allows federaton wth the global XMPP-based network for presence & IM • Server-to-server (XMPP) federaton wth Google Talk • Allows group chat sessons across systems • Allows message archvng (f enabled) across systems • User self-admnstraton of credentals for other IM systems SIP Lne State Presence • Centralzed management of resource lsts for dalog events • Busy Lamp Feld (BLF) feature based on lne state presence • Federated wth IM presence to show "on the phone" status n the user’s unfed presence status • Lne state presence as requred by Attendant Consoles Personal Assstant over IM • • • • • • • Personal Assstant feature for every user Dynamc call control usng IM Dynamc conference management usng IM Unfed messagng management usng IM Call hstory / mssed calls drectly to the user’s moble phone Call ntaton usng corporate dalplan Corporate drectory look-ups Fxed Moble Convergence (FMC) • FMC applcaton enabled va Instant Messagng wth the followng capabltes offered to moble users: Enterprse number dalng Corporate drectory look-ups Call hstory Presence sharng & Instant Messagng • Server-to-server (XMPP) federaton wth Google Talk allows usng GTalk clent on smart phones • Dynamc conference management 6. Conferencng Audo Conferencng conferencng soluton that offers • Software-based comprehensve and cost-effectve conferencng for the whole enterprse • Voce conferencng server can run on the same UCAP server hardware wth other components or on dedcated server hardware • Each user on the system can have a personal meet-me conference brdge • Optonal recordng of conference calls where the recordng s forwarded to the user’s unfed messagng nbox • Optonal PIN request to enter conference brdge for securty • Dynamc conference controls from the user's Web portal • Dynamc conference control usng IM Partcpant entry / ext messages Mute, solate, dsconnect, nvte • Assocaton of personal conference brdge wth personal group chat room • Automatc mgraton of group chat to a voce conference • Can lmt number of conference partcpants on each brdge • Support for HD Audo and transcodng f necessary • Support for up to 500 ports of conferencng, dependent on hardware • Confgurable DTMF keys for conference controls usng the TUI • A UCAP system can have more than one conference server f more capacty s needed • All conferencng servers and servces centrally managed and confgured • Drect DID number assgnment to user’s personal conference brdge for drect external entry Vdeo Conferencng • Vdeo conferencng possble wth supportng devces lke PC soft phones or vdeo phones • UCAP system handles call connecton. All meda processng s done by supportng vdeo clents 7. Basc Meda Servces Enterprse Auto Attendant • Unlmted number of auto-attendants • Customzable IVR menus Hunt Groups • Unlmted number of hunt groups • Seral and parallel forkng (rngs sequentally or at the same tme) • Confgurable rng tme per attempt • Enable / dsable user call forwardng rules whle huntng • Flexble confguraton of destnaton f no answer Musc on Hold • Musc on hold server plays musc durng hold tmes • Per user or per user group confgurable musc fles • Allows external musc source connected over a sound card Call Park & Retreve • Unlmted number of park orbts • Vsual ndcaton on the phone of the state of the park orbt usng the presence server (BLF) • Musc on park • Up-loadable park musc fle • Confgurable call retreve code • Confgurable call retreve tmeout • Automatc park tmeout wth confgurable tme • Confgurable park escape key • Allow multple calls on one orbt • Users can have a personal park orbt Group Pagng Web Servces Applcaton Integraton • • • • • • Unfed messagng ntegraton nto other applcatons usng Web Servces REST nterface allowng maxmum flexblty • Integraton nto Outlook 2010 wth Web Servces based MWI actvaton / deactvaton Integrated group pagng server Unlmted number of pagng groups Supports regular SIP phones usng auto-answer Supports dedcated n-celng devces (SIP) Confgurable pagng prefx Analog Lnes (FXS) • FXS gateway requred to connect analog machnes • SIP complant FXS gateways supported • Fax support wth fax machne connected to FXS gateway (gateway should support T.38) • Analog cordless phone support Fax Server • Automated nbound fax-to-emal support (fax receve) • DID assgnment to fax servce for personalzed fax number 8. Trunkng PSTN Trunkng • Unlmted number of PSTN gateways and trunk lnes, connected to the IP network • Supports any SIP complant gateway (e.g. Audocodes, Patton) • Gateways can be n any locaton, connected to the routed network (no NAT between UCAP servers & gateways) • Flexble gateway selecton per dalng rule • Source routng of calls so that calls can be routed through a local gateway to save WAN bandwdth • DID management for ncomng & outgong calls • Local DID per gateway • DNIS • CLIP Management User CLIP Gateway default CLIP Prefx strppng / appendng • Per gateway CLIR SIP Trunkng • • • • • • • • • • • SIP trunkng gateway wth NAT traversal Remote worker support wth NAT traversal and auto-detecton ITSP templates for smplfed confguraton SIP call orgnaton & termnaton Branch offce routng Proxy to proxy nterconnect usng ACLs Least-cost-routng (LCR) Mxng of PSTN trunks wth SIP trunks for LCR and falover TLS support for secure sgnalng Route header for flexble call routng through an SBC Flexble rules for SBC selecton (route selecton) 9. Busness Process Integraton SOA Archtecture • Web Servces SOAP nterface for key admnstratve functons • Web Servces REST nterface for user portal functons and thrd party call control • All components centrally managed usng XML RPC • Google Web Toolkt (GWT) Mcrosoft Offce 2010 • UCAP toolbar plug-n applcaton on top of Outlook 2010 • Adds presence to Outlook 2010 as a substtute for Lync 2010 • Adds socal network connector to Outlook 2010 enablng address book and full user profle sharng wth UCAP, ncludng user’s avatars • Offers full unfed messagng ntegraton nto Outlook 2010 • Clck-to-call wth automatc phone number dscovery n receved emals • Outlook 2010 ntegrated dynamc conference call management wth entry / ext messages and full experence controls • Drect launch of IM conversaton from wthn Outlook 2010 • Notfcaton of mssed calls on Outlook 2010 toolbar wndow • Notfcaton of unlstened vocemal messages on Outlook 2010 toolbar wndow 10. Standards Complance SIP & XMPP Complance • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Advanced call control usng RFCs Early meda (SDP n 180/183) Delayed SDP (SDP n ACK) Re-INVITE Codec change, hold, off-hold Route/Record-Route header felds Confgurable RTP/RTCP ports Confgurable SIP ports Consultatve and blnd transfer and thrd party call control A large number XMPP XEP standards RFC 3261 Sesson Intaton Protocol usng both UDP and TCP RFC 3920 XMPP Core RFC 3921 XMPP IM RFC 3515 Refer Method RFC 3891 Referred-By header RFC 3892 Replaces header RFC 3263 Locatng SIP Servers - use of DNS SRV records RFC 3581 Symmetrc Response Routng (rport) RFC 3265 SIP-Specfc Event Notfcaton RFC 3842 Voce mal message watng ndcaton (MWI) RFC 3262 Relable Provsonal Responses RFC 2833 Out-of-band DTMF tones RFC 3264 Offer/Answer model for SDP for Codec Negotaton RFC 2617 HTTP Authentcaton RFC 3327 Path header RFC 3325 P-Asserted dentty RFC 4235 An INVITE-Intated Dalog Event Package for SIP RFC 4662 SIP Event Notfcaton Extenson for Resource Lsts RFC 2327 SDP: Sesson Descrpton Protocol RFC 3326 The Reason Header Feld for SIP BLA support: RFC 3680 SIP Event Package for Regstratons RFC 3265 SIP-Specfc Event Notfcaton draft-etf-sppng-dalog-package-06 draft-anl-sppng-bla-02 ucapteknk. vers. 1.1/29.06.12 www.karel-electroncs.com