1 SYSTEM FEATURES UNIFIED COMMUNICATIONS APPLICATION PLATFORM - UCAP
2 UCAP SYSTEM FEATURES 1. UCAP Collaborat on and Commun cat ons System System Appl cat on Serv ces SIP sess on manager, an opt onally geo-redundant and load- shar ng call control system Un f ed messag ng and personal auto-attendant appl cat on Conferenc ng appl cat on for aud o conferenc ng & collaborat on Instant messag ng (IM) and presence server SIP trunk ng server for connect on to the outs de world Conf gurat on and adm n strat on appl cat on w th Web GUI SIP presence server (RLS) for l ne state presence Bas c med a serv ces for call park, mus c on hold, pag ng and auto-attendant Med a relay serv ce for NAT traversal Call deta l record (CDR) collect on & process ng server WebCM server for send ng CDR data to advanced CDR process ng and b ll ng appl cat on Th rd party call control (3PCC) server us ng REST nterfaces Process management server for central zed cluster management Dev ce auto-prov s on ng server Alarm and not f cat on server Stat st cs server Requ red Hardware and Operat ng System Karel UCAP runs on standard servers CentOS 5 operat ng system, 64 b t ed t on Gener c hardware requ rements depend ng on number of users (note that actual hardware conf gurat on depends on customer requ rements and scale): <150 users: QuadCore processor 2,5 GHz, 4 MB Cache, 1333 MHz FSB, 4 GB RAM, 160 GB d sk <500 users: XEON QuadCore processor 2,4 GHz, 1333 MHz FSB, 8 GB RAM, 2x300 GB d sk >500 users: 2 x XEON Quadcore processor 2,4 GHz, 1333 MHz FSB, 16 GB RAM, RAID 5w/ 3x300 GB SAS d sk (hot swap). Depend ng on scale, load-shar ng cluster w th several nodes can be necessary 2. SIP Sess on Manager Core Telephony System Features Transfer (consultat ve & bl nd) Call coverage Call hold / retr eve Consultat on hold Mus c on Hold for IETF standards compl ant phones User-spec f c MoH f les Adm n or user conf gurable BLF presence and soft-keys Uploadable mus c f le 3-way / 5-way v deo and vo ce conference on the phone Call p ckup (global and d rected call p ckup) Call park & retr eve Hunt groups Intercom w th auto-answer (b -d rect onal) SIP URI d al ng CLID (Call ng L ne Ident f cat on) CNIP (Call ng Party Name Ident f cat on Presentat on) CLIP (Call L ne Ident f cat on Presentat on) CLIR (Call L ne Ident f cat on Restr ct on) Per gateway CLIP man pulat on Call wa t ng Do not D sturb (DnD) Forward on busy, no answer, do not d sturb Mult ple l ne appearances Mult ple calls per l ne Mult ple stat on appearance Outbound call block ng Cl ck-to-call Red al Call h story (d aled, rece ved, m ssed) Auto off-hook / r ng down Incom ng only Conf gurat on of nd v dual Speed D al soft-keys Auto-generat on of d rectory nformat on Performance Unl m ted number of s multaneous calls (vo ce, HD vo ce, v deo) -depends only on LAN / WAN bandw dth 54,000 BHCC (SIP) per server node (15 cps per node). System scales l nearly by add ng d str buted server nodes Up to f ve-way redundant conf gurat on w th seamless load-shar ng at the transact on level and all nodes centrally managed Up to 20,000 users. Remote Branch Support Central zed deployment: Branch only prov des phone / PC mob le cl ents and opt onally PSTN gateways for fa lover, reduced WAN bandw dth consumpt on or emergency calls D str buted deployment: Branch prov des full call server w th SIP s te-to-s te d al ng between off ces Branch off ce locat ons can be def ned n the adm n strat on system w th full flex b l ty Users, phones, gateways, sess on border controllers (SBCs) and spec f c system serv ces can be ass gned to a branch locat on A PSTN gateway can be ava lable for calls that or g nate n a spec f c branch only or for general use w th full fa lover Source rout ng allows call rout ng based on locat on (branch local calls are routed through local gateway preferably) Alternat ve surv vable branch conf gurat on poss ble w th Aud ocodes gateways SAS funct onal ty Certa n UCAP serv ces can be deployed n the branch as part of the cluster (e.g. conferenc ng) for scale or redundancy Branch nodes can be redundant H gh Ava lab l ty and Res l ency Opt onally fully redundant call control system w th load-shar ng and redundancy at the transact on level that prov des a geo-redundant SIP sess on manager True load-shar ng based on the pr or ty pol cy set n the DNS nfrastructure for SIP DNS SRV records No dropped or fa led calls upon a server outage. Med a does not traverse the server and s gnal ng auto-recovers through dynam c fa lover to an alternate node Real-t me synchron zat on of transact on state nformat on between all nodes us ng a d str buted data repl cat on mechan sm Un form user, credent al, perm ss on and call rout ng nformat on ava lable to all nodes Automat c recovery after server fa lure. Node that comes back seamlessly enters load-shar ng mode Reports on load d str but on between servers
3 3. Conf gurat on and Adm n strat on Super or Vo ce Qual ty Peer-to-peer med a rout ng for best qual ty (med a not routed through the UCAP server) Unmatched vo ce qual ty w th lowest delay and j tter Support for any codec supported by the cl ents (phone or gateway), nclud ng v deo Support for HD Vo ce w th w deband codecs Peer connect on codec negot at on (no transcod ng requ red) Conferenc ng, auto-attendant and vo cema l support HD vo ce w th transcod ng f necessary Flex ble D alplan Easy to use GUI based d al plan man pulat on T me-based d al ng rules w th d fferent adm n strator-def ned schedules Rules-based least cost rout ng Dynam c call rout ng based on user's IM presence status D rectly route to vo cema l on IM status Do-not-D sturb (DnD) Dynam cally add forward ng dest nat ons based on user s presence status Automat c gateway redundancy and fa l-over Spec f c emergency call rout ng Perm ss on-based rules Pref x man pulat on D alplan templat ng for nternat onal d al plans Flex ble nternal extens on length Conf gurable r ng tones for nternal and external calls ENUM support for publ c & pr vate ENUM based call rout ng Spec f c rule for s te-to-s te call rout ng between SIP systems Red rector plug ns allow any mag nable d al rule to be added as a plug n, nclud ng based on d rectory lookups D rect Internet Call ng Ab l ty to conf gure SIP URI based call rout ng to other doma ns Spec f c Sess on Border Controller (SBC) select on for call rout ng Conf gurat on of nat ve NAT traversal w th opt onally redundant med a anchor ng f necessary Med a anchor ng supports vo ce and v deo for any codec IM / Presence support through f rewall Enterpr se Level Secur ty All outbound calls authent cated to prevent toll fraud or unauthor zed calls Authent cat on and author zat on based on user s perm ss ons susta ned dur ng node outage (e.g. surv vable branch scenar o) Secure user password management w th auto-generated complex SIP passwords for max mum secur ty Embedded f rewall w th SIP packet rate l m t ng capab l ty DoS attack harden ng HTTPS secure Web access for adm n strators and users TLS based s gnal ng for SIP trunks TLS connect on to cl ents, nclud ng cl ents for remote users Opt onal PIN request to enter conference br dges Web Serv ce API over secure connect on and authent cated us ng user credent als Cert f cate management for self-al gned and th rd party cert f cates. Auto-generates CSR requests System Adm n strat on Features Browser based conf gurat on and management GUI based cert f cate management LDAP / M crosoft Act ve D rectory ntegrat on SOAP Web Serv ces nterface CSV mport and export of user and dev ce data Adm n strat on of Instant Messag ng (IM) and Presence sett ngs Integrated backup & restore Scheduled backups D agnost cs D splay act ve reg strat ons & act ve calls D splay job status Status of serv ces Snapshot logs for debugg ng Logg ng (custom zable log levels, message log per serv ce) Doma n al as ng Support for DNS SRV Support for DNS NAPTR based call rout ng Automat c restart after power fa lure Server stat st cs ( ntegrated graphs and SNMP) SIP Trunk stat st cs Log n h story report (successful and unsuccessful) Automated test ng of network serv ces (DHCP, DNS, NTP, TFTP, FTP, HTTP) for proper conf gurat on Doma n adm n strat on Installat on and management of language packs for local zat on PostgreSQL database for conf gurat on and CDR data D rectory Server & LDAP Integrat on UCAP allows for ntegrated user management us ng an ex st ng d rectory serv ce over an LDAP nterface M crosoft Act ve D rectory ntegrat on LDAP b nd authent cat on and author zat on for central zed password management and s ngle s gn-on Upload of user prof le nformat on w th a flex ble mechan sm that allows mapp ng LDAP schema f elds to UCAP prof le f elds Scheduled re-sync w th the corporate d rectory Global address book (GAL) synchron zat on w th the d rectory server TLS based secure connect on over LDAP User Management User management w th ease: Create a user, prov s on a phone and ass gn a l ne n only three cl cks Numer c or alpha-numer c user IDs User PIN management (Web GUI or TUI) Al as ng fac l ty (numer c and alpha-numer c al ases) Extens on and al as un queness assurance Management or auto-ass gnment of user's IM ID and d splay name Automat c IM buddy l st creat on based on user groups Granular per user perm ss ons Call perm ss ons: 900 D al ng Internat onal D al ng Long D stance D al ng Mob le D al ng Local D al ng Toll Free D al ng Forward Calls External
4 System perm ss ons: User has vo cema l nbox User l sted n auto-attendant d rectory User can record system prompts User has adm n strator access User allowed to change PIN from TUI User can use M crosoft Exchange 2007/10 VM User has a personal auto-attendant User can subscr be to presence Custom perm ss ons as def ned by the adm n strator Superv sor perm ss on for groups (e.g. Call Center superv sor) Management of user contact record (user prof le) Comprehens ve prof le data Work and home address In-bu ld ng locat on nformat on Ass stant nformat on Support for avatar nclud ng support for Gravatar SIP password management for max mum secur ty User groups w th group propert es Per user call forward ng (f nd me / follow me) To local extens on, PSTN number, or SIP address Based on user or adm n strator def ned t me schedules Parallel or ser al r ng Allows def n t on of r ng t me before try ng next number Allows several forward ng dest nat ons F nd me / follow-me conf gurat on us ng the Web user portal Extens on pool w th automat c ass gnment Per user Caller ID (CLID) ass gnment Per user Caller ID block ng IM not f cat on sett ngs Conference entry and ex t messages Alert ng user when someone s leav ng a vo cema l message User Self-Control Every user on the system gets access to a personal Web user portal for self-management and control Management of un f ed messag ng (vo cema l) Conf gurat on of un f ed messag ng preferences Access to vo cema ls and conference call records Flex ble t me based f nd-me / follow-me Management of personal prof le data nclud ng avatar Personal call h story and m ssed calls Personal phone book, speed d al and presence management Contact upload from GMa l and Outlook Cl ck-to-call Ind v dual phone management Personal auto-attendant conf gurat on Dynam c conference br dge control w th part c pant mute / unmute, nclude / solate, nv te, d sconnect funct ons Management of personal IM account Personal MoH mus c upload and preferences Author zat on Codes Author zat on codes allow users to make pr v leged calls from any phone enter ng a secret code Codes can be ass gned to any user IVR serv ce allows easy authent cat on D rectory, Speed D al, Softkeys Automated generat on of d rectory nformat on per user or per user group nclud ng a global address book (GAL) Support for complete contact nformat on and user prof le nclud ng avatar Creat on and management of many d fferent d rector es (per user, per user group, per locat on, etc.) Upload of contacts from GMa l and Outlook User management of d rectory nformat on Automated prov s on ng of d rectory nformat on nto user's phones Allows add ng contacts to the d rectory from a.csv f le (Excel) User conf gurable speed d al ( nternal / external numbers, SIP URIs) Speed d al generated server s de and backed up Auto-prov s on ng of speed d al to phones User conf gurat on of Busy Lamp F eld (BLF) to mon tor presence of other users or phones (e.g. attendant console) Installat on & Upgrades Automated nstallat on from CD ISO for OS and UCAP appl cat on Graph cal conf gurat on w zard for system conf gurat on after nstallat on Cert f cate generat on (allows nstall ng a s gned cert f cate f des red) Standard L nux package management w th yum Opt onal auto-conf gurat on of DNS, DHCP, NTP, FTP, TFTP, HTTP servers Des gned so that no L nux adm n strator sk lls are requ red for nstallat on and conf gurat on Centrally Managed Cluster Automated nstallat on and conf gurat on of a d str buted system w th spec f c server roles Automated and central conf gurat on of a h gh-ava lab l ty redundant system Allows for ded cated server hardware for conferenc ng, vo cema l and call control All conf gurat on for remote servers s centrally generated and d str buted securely Plug & Play Dev ce Management Auto-reg strat on of Karel IP phones s mpl f es nstallat on Plug & play management of phones Plug & play management of PSTN gateways Auto-generat on of phone / gateway conf gurat on prof le Auto-p ckup of prof le by phone / gateway Central zed management of all the parameters Central zed backup and restore of all the conf gurat ons Auto-generat on of l nes by ass gn ng users to dev ces Dev ce group management and propert es F rmware upgrade management Managed Dev ces Karel IP phones Polycom SoundPo nt all models (IP 301, 320, 330, 430, 450, 501, 550, 560, 601, 650, 670) Polycom SoundStat on IP 5000, 6000, 7000 SIP Polycom VVX-1500 v deo phone (release 4.0.2)
5 4. Un f ed Messag ng Alarm and SNMP MIBs SNMP traps can send alerts to network mon tor ng systems for mmed ate attent on All alerts can also be e-ma led or sent to SMS dev ces (v a an SMS gateway) Alert ng ncludes ab l ty to alert on-s te staff of emergency number be ng d aled Alarm groups allow adm n strators to make sure appropr ate staff s not f ed H stor c alarms can be accessed over adm n strator Web GUI Call Deta l Records (CDR) Call State Events (CSE) collected for all s gnal ng act v ty Background process ng of CSEs nto CDRs All data stored n a database at all t mes Flex ble report generat on us ng Jasper Reports, bu lt- n Supports redundant call control Determ nes and records call type nformat on Internal / external calls Calls to spec f c UCAP serv ces Collates call legs nto s ngle CDRs SOAP / REST Web Serv ces access to CDR data D rect database access for th rd party report ng appl cat ons Bas c CDR report ng over UCAP adm n strator Web GUI: H stor c Call Deta l Record report ng n near real-t me Mon tor ng of currently act ve (on-go ng) calls Export of act ve and h stor c CDRs to Excel (.csv f le) Ind v dual call h story per user n the user portal Advanced CDR report ng & b ll ng us ng external Karel WebCM appl cat on (opt onal): External WebCM tool can be used for advanced CDR report ng and b ll ng WebCM appl cat on runs on another standard server hardware CDR data s sent to WebCM appl cat on by WebCM serv ce on UCAP Web-based access to WebCM GUI Can work w th mult ple UCAP systems More than one user can use the system at the same t me Mult ple user account types Advanced search over CDR data Reports can be del vered automat cally by ema l. Da ly, weekly and monthly report schedules can be def ned Data presented n web nterface can be exported to CSV, Excel, PDF or XML formats H stograms graph cally present d str but ons of calls w th respect to call type, hour, day of week, day of month, and month Tar ffs can be created based on extens on groups, trunk groups and the operator Per ods of val d ty can be def ned for the tar ffs Ex st ng records can be mod f ed and costs can be recalculated Calls can be pr ced w th respect to the pref x of called number Internal calls can be pr ced as well Call records can be arch ved L cens ng A secur ty dev ce s used for l cens ng requ red features Secur ty dev ce connects to pr mary server over USB, and must stay connected for operat on of l censed features L cense and secur ty dev ce nformat on can be accessed and new keys can be entered over adm n strator Web GUI Only one secur ty dev ce s needed n redundant systems Un f ed Messag ng (Vo cema l) Integrated un f ed messag ng system Support for nboxes, l m ted only by d sk space System requ res about 1MB d sk space per m nute of vo cema l record ng Performance tested up to 400 s multaneous calls (ports) on dual core server hardware Un f ed messag ng serv ce can run on ded cated server hardware, or can be co-located w th other UCAP components Message store can be NFS mounted Local zed per user by nstall ng language packs Browser based user portal for un f ed messag ng management RSS feed for new messages Message Wa t ng Ind cat on (MWI) User conf gurable d str but on l sts Group and system d str but on l sts Ema l not f cat on of new vo cema l messages w th or w thout the message attached as a wav f le Forward ng of message as a wav f le Supports several parallel not f cat ons Per user selectable templates for ema l format when forward ng vo cema l to accommodate smartphone message formats Manage folders: Folders for message organ zat on Manage greet ngs: Mult ple custom zable greet ngs Remote vo cema l access us ng a phone Auto-removal of deleted messages Da ly report on d sk usage sent to adm n IMAP ntegrat on can be used for all ema l systems that support all the necessary IMAP pr m t ves (e.g. M crosoft Exchange) Vo cema l messages automat cally appear n user s nbox IMAP back-end connect on: Acts as an IMAP cl ent nto M crosoft Exchange and other compat ble ema l systems User manageable credent als for IMAP federat on Properly controls MWI on the phone when message s "read" us ng the ema l cl ent Personal Auto Attendant Personal greet ng User conf gurable personal auto-attendant for every user on the system Up to 10 nd v dual forward ng cho ces (keys 0 through 9) User can record greet ng that corresponds to key conf gurat on Ind v dual zero-out to a personal ass stant or recept on st Ind v dual select on of language based on nstalled language packs Integrat on w th M crosoft Exchange D al plan ntegrat on w th M crosoft Exchange 2007/2010 Un f ed Messag ng server Allows m xed env ronment w th groups of users on Exchange or UCAP Un f ed Messag ng server Perm ss on-based select on of Un f ed Messag ng server per user or per user group Automat c d al plan rout ng to Exchange Un f ed Messag ng server enables use of speech-based Exchange 2007/2010
6 5. Instant Messag ng and Presence Instant Messag ng & Presence Standard XMPP based IM and presence capab l ty that scales to enterpr se requ rements Supports standard XMPP based cl ents Auto-conf gurat on of user's IM accounts Auto-conf gurat on of IM user groups Personal group chat room for every user w th easy escalat on from group chat to a conference call Federat on of phone presence w th IM presence Custom zable "on the phone" presence status message Dynam c call rout ng based on user's presence status Message arch v ng and search Server-to-server federat on Cl ent-to-cl ent f le transfer Integrat on of user prof le nformat on and avatar Presence & IM Federat on UCAP allows federat on w th the global XMPP-based network for presence & IM Server-to-server (XMPP) federat on w th Google Talk Allows group chat sess ons across systems Allows message arch v ng ( f enabled) across systems User self-adm n strat on of credent als for other IM systems SIP L ne State Presence Central zed management of resource l sts for d alog events Busy Lamp F eld (BLF) feature based on l ne state presence Federated w th IM presence to show "on the phone" status n the user s un f ed presence status L ne state presence as requ red by Attendant Consoles Personal Ass stant over IM Personal Ass stant feature for every user Dynam c call control us ng IM Dynam c conference management us ng IM Un f ed messag ng management us ng IM Call h story / m ssed calls d rectly to the user s mob le phone Call n t at on us ng corporate d alplan Corporate d rectory look-ups F xed Mob le Convergence (FMC) FMC appl cat on enabled v a Instant Messag ng w th the follow ng capab l t es offered to mob le users: Enterpr se number d al ng Corporate d rectory look-ups Call h story Presence shar ng & Instant Messag ng Server-to-server (XMPP) federat on w th Google Talk allows us ng GTalk cl ent on smart phones Dynam c conference management 6. Conferenc ng Aud o Conferenc ng Software-based conferenc ng solut on that offers comprehens ve and cost-effect ve conferenc ng for the whole enterpr se Vo ce conferenc ng server can run on the same UCAP server hardware w th other components or on ded cated server hardware Each user on the system can have a personal meet-me conference br dge Opt onal record ng of conference calls where the record ng s forwarded to the user s un f ed messag ng nbox Opt onal PIN request to enter conference br dge for secur ty Dynam c conference controls from the user's Web portal Dynam c conference control us ng IM Part c pant entry / ex t messages Mute, solate, d sconnect, nv te Assoc at on of personal conference br dge w th personal group chat room Automat c m grat on of group chat to a vo ce conference Can l m t number of conference part c pants on each br dge Support for HD Aud o and transcod ng f necessary Support for up to 500 ports of conferenc ng, dependent on hardware Conf gurable DTMF keys for conference controls us ng the TUI A UCAP system can have more than one conference server f more capac ty s needed All conferenc ng servers and serv ces centrally managed and conf gured D rect DID number ass gnment to user s personal conference br dge for d rect external entry V deo Conferenc ng V deo conferenc ng poss ble w th support ng dev ces l ke PC soft phones or v deo phones UCAP system handles call connect on. All med a process ng s done by support ng v deo cl ents 7. Bas c Med a Serv ces Enterpr se Auto Attendant Unl m ted number of auto-attendants Custom zable IVR menus Hunt Groups Mus c on hold server plays mus c dur ng hold t mes Per user or per user group conf gurable mus c f les Allows external mus c source connected over a sound card Unl m ted number of hunt groups Ser al and parallel fork ng (r ngs sequent ally or at the same t me) Conf gurable r ng t me per attempt Enable / d sable user call forward ng rules wh le hunt ng Flex ble conf gurat on of dest nat on f no answer Mus c on Hold Call Park & Retr eve Unl m ted number of park orb ts V sual nd cat on on the phone of the state of the park orb t us ng the presence server (BLF) Mus c on park Up-loadable park mus c f le Conf gurable call retr eve code Conf gurable call retr eve t meout Automat c park t meout w th conf gurable t me Conf gurable park escape key Allow mult ple calls on one orb t Users can have a personal park orb t
7 Group Pag ng Integrated group pag ng server Unl m ted number of pag ng groups Supports regular SIP phones us ng auto-answer Supports ded cated n-ce l ng dev ces (SIP) Conf gurable pag ng pref x Analog L nes (FXS) FXS gateway requ red to connect analog mach nes SIP compl ant FXS gateways supported Fax support w th fax mach ne connected to FXS gateway (gateway should support T.38) Analog cordless phone support Fax Server Automated nbound fax-to-ema l support (fax rece ve) DID ass gnment to fax serv ce for personal zed fax number 8. Trunk ng PSTN Trunk ng SIP trunk ng gateway w th NAT traversal Remote worker support w th NAT traversal and auto-detect on ITSP templates for s mpl f ed conf gurat on SIP call or g nat on & term nat on Branch off ce rout ng Proxy to proxy nterconnect us ng ACLs Least-cost-rout ng (LCR) M x ng of PSTN trunks w th SIP trunks for LCR and fa lover TLS support for secure s gnal ng Route header for flex ble call rout ng through an SBC Flex ble rules for SBC select on (route select on) Unl m ted number of PSTN gateways and trunk l nes, connected to the IP network Supports any SIP compl ant gateway (e.g. Aud ocodes, Patton) Gateways can be n any locat on, connected to the routed network (no NAT between UCAP servers & gateways) Flex ble gateway select on per d al ng rule Source rout ng of calls so that calls can be routed through a local gateway to save WAN bandw dth DID management for ncom ng & outgo ng calls Local DID per gateway DNIS CLIP Management User CLIP Gateway default CLIP Pref x str pp ng / append ng Per gateway CLIR SIP Trunk ng 9. Bus ness Process Integrat on SOA Arch tecture Web Serv ces SOAP nterface for key adm n strat ve funct ons Web Serv ces REST nterface for user portal funct ons and th rd party call control All components centrally managed us ng XML RPC Google Web Toolk t (GWT) Web Serv ces Appl cat on Integrat on Un f ed messag ng ntegrat on nto other appl cat ons us ng Web Serv ces REST nterface allow ng max mum flex b l ty Integrat on nto Outlook 2010 w th Web Serv ces based MWI act vat on / deact vat on M crosoft Off ce 2010 UCAP toolbar plug- n appl cat on on top of Outlook 2010 Adds presence to Outlook 2010 as a subst tute for Lync 2010 Adds soc al network connector to Outlook 2010 enabl ng address book and full user prof le shar ng w th UCAP, nclud ng user s avatars Offers full un f ed messag ng ntegrat on nto Outlook 2010 Cl ck-to-call w th automat c phone number d scovery n rece ved ema ls Outlook 2010 ntegrated dynam c conference call management w th entry / ex t messages and full exper ence controls D rect launch of IM conversat on from w th n Outlook 2010 Not f cat on of m ssed calls on Outlook 2010 toolbar w ndow Not f cat on of unl stened vo cema l messages on Outlook 2010 toolbar w ndow 10. Standards Compl ance SIP & XMPP Compl ance Advanced call control us ng RFCs Early med a (SDP n 180/183) Delayed SDP (SDP n ACK) Re-INVITE Codec change, hold, off-hold Route/Record-Route header f elds Conf gurable RTP/RTCP ports Conf gurable SIP ports Consultat ve and bl nd transfer and th rd party call control A large number XMPP XEP standards RFC 3261 Sess on In t at on Protocol us ng 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 Locat ng SIP Servers - use of DNS SRV records RFC 3581 Symmetr c Response Rout ng (rport) RFC 3265 SIP-Spec f c Event Not f cat on RFC 3842 Vo ce ma l message wa t ng nd cat on (MWI) RFC 3262 Rel able Prov s onal Responses RFC 2833 Out-of-band DTMF tones RFC 3264 Offer/Answer model for SDP for Codec Negot at on RFC 2617 HTTP Authent cat on RFC 3327 Path header RFC 3325 P-Asserted dent ty RFC 4235 An INVITE-In t ated D alog Event Package for SIP RFC 4662 SIP Event Not f cat on Extens on for Resource L sts RFC 2327 SDP: Sess on Descr pt on Protocol RFC 3326 The Reason Header F eld for SIP BLA support: RFC 3680 SIP Event Package for Reg strat ons RFC 3265 SIP-Spec f c Event Not f cat on draft- etf-s pp ng-d alog-package-06 draft-an l-s pp ng-bla-02
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