© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v5.03-1 Deployment of Cisco Unified CallManager Release 5.0 Endpoints Evaluating Cisco IP Telephony. - презентация

1 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Deployment of Cisco Unified CallManager Release 5.0 Endpoints Evaluating Cisco IP Telephony Endpoints

2 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Cisco IP Phone Overview Cisco IP phones have the following enhancements: Display-based User customization Inline PoE Support of the G.711 and G.729 audio codecs

3 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Cisco IP Phone Overview (Cont.)

4 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Seamless, Native Support for SCCP and SIP Cisco Unified CallManager Release 5.0 Existing SCCP Phones SCCP SIP Advanced Cisco SIP Phones Enhanced SCCP Phones Existing Cisco SIP Phones Third-Party SIP Phones

5 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Entry-Level Cisco IP Phones Cisco Unified IP Phone 7905G Cisco Unified IP Phone 7902G Cisco Unified IP Phone 7911G Cisco Unified IP Phone 7912G Basic-featured Cisco IP phones for low-to-medium telephone use Single line/directory number Display-based (except Cisco 7902G) Message waiting indicator

6 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Midrange Cisco IP Phones Cisco Unified IP Phone 7940G Full-featured Cisco IP phones for medium-to-high telephone use Multiline Large pixel-based displays Integral switches Built-in headsets and high-quality speakerphones Multiprotocol-capable (SCCP, SIP, MGCP) Cisco Unified IP Phone 7941G(G-GE) Cisco Unified IP Phone 7961G(G-GE) Cisco Unified IP Phone 7960G

7 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Upper-End Cisco IP Phones Addresses needs of executives Large color touch-sensitive, pixel-based displays bring applications in full, vivid colors to users without PCs Eight telephone lines, or combinations of lines and direct access to telephony features Five interactive softkeys Built-in headsets and high-quality, hands-free speakerphones Multiprotocol-capable (SCCP, SIP, MGCP) Cisco Unified IP Phone 7970G Cisco Unified IP Phone 7971G-GE

8 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Additional Cisco IP Telephony Endpoints Cisco Unified 7914 Expansion Module Cisco IP Communicator Cisco ATA 186 Cisco Unified IP Conference Station 7936 Cisco Unified IP Phone 7985G Cisco Unified Wireless IP Phone 7920

9 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Overview of SIP Phone Models Basic SIP phones Very basic SIP phones Cisco SIP Phone Cisco SIP Phone Cisco SIP Phone Unified IP / /7971 Communicator Advanced SIP phones Cisco Unified IP Phone 7911 Cisco Unified IP Phone 7941/7961 Cisco Unified IP Phone 7970/7971 Cisco Unified IP Communicator Third-Party SIP phonesCisco ATA 186Cisco Unified IP Phone 7940/7960 Cisco Unified IP Phone 7905/7912

10 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v SIP Endpoints: Basic SIP Minimum required features for Cisco Unified IP Phones 7905 and 7912 are available with firmware version 8.0: Registration redundancy Failover to SRST Reset/restart from Cisco Unified CallManager Configuration and local dial plan provisioned from Cisco Unified CallManager administration pages Encrypted configuration files Call preservation

11 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v SIP Endpoints: Basic SIP (Cont.) These required features for Cisco Unified IP Phones 7940 and 7960 are available with software version 8.0: Enhancement to release 7.5: –Version adds better RFC compliance (3261 (SIP), 3264 (Offer/Answer), and 3311(UPDATE)) Registration redundancy Reset/Restart from Cisco Unified CallManager Failover to SRST Configuration and local dial plan provisioned from Cisco Unified CallManager administration pages Encrypted configuration files

12 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v SIP Endpoints: Basic SIP (Cont.) These required features for Cisco Unified IP Phones 7940 and 7960 are available with software version 8.0: Limited scope compared to the Cisco Unified IP Phones 7911, 7941, 7961, 7970, 7971 models SIP implementation: –Music on Hold –Display name updates via Remote-Party-ID End-user feature interaction and user operation is different between SCCP and SIP on the Cisco Unified IP Phones 7940 and 7960: –Look and Feel of existing firmware 7.5.

13 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v SIP Endpoints: Very Basic SIP Third-party SIP phones: Cisco Unified CallManager Release 5.0 supports Cisco SIP phones as well as third-party SIP phones such as the following: HardphonesSoftphones

14 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v SIP Endpoints: Advanced SIP SIP firmware Version 8.0 introduces SIP support on the Cisco Unified IP Phones 7911, 7941, 7961, 7970, 7971: –Java architecture currently used in the SCCP phones was leveraged for its user interface control and platform infrastructure. –Cisco Unified IP Phones 7940 and 7960: SIP stack and call feature is ported and enhanced for the new phones. From an end-user perspective, feature interaction and user interface operation is nearly identical between SCCP and SIP: –Majority of the SCCP features have been ported to SIP on the Cisco Unified IP Phones 7911, 7941, 7961, 7970, 7971

15 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v SIP Phone Feature Issues What is not supported with the Cisco Unfied IP Phones 7905, 7912, 7940, and 7960? Anything requiring CMXML 3.1 (IPPM, IPMA, EM) Digit-by-digit dialing using Key Pad Markup Language The 7914 sidecar module Cisco Unified Video Advantage CTI call control Configurable softkeys Ad-Hoc Conference B2BUA mode (external conferencing resources) User interface consistency with the SCCP phones

16 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Cisco SCCP IP Phone Startup Process Cisco Unified CallManager Cisco TFTPDHCP 1. Cisco IP phone obtains power from the switch 2. Cisco IP phone loads locally stored image 3. Switch provides VLAN information to Cisco IP phone 4. Phone sends DHCP request; receives IP information and TFTP server address 5. Cisco IP phone gets configuration from TFTP server 6. Cisco IP phone registers with Cisco Unified CallManager server

17 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Cisco SIP Phone Startup Process 1. CTL File (If present) Cisco TFTPCisco Unified CallManager Cisco SIP phone 2. SEP.cnf.xml3. XMLDefault.cnf.xml4. Loads File5. Dial rules (Optional)6. Establish Connection7a. Register7b. 200 OK8. Localization Files9. Soft Keys10. Custom Ringers

18 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Boot Sequence Differences Between Cisco SCCP and SIP Phones The boot sequences for SIP are very similar to SCCP. There are three main differences: SEP.cnf.xml: The SIP phones get all of their configuration from the config file. Therefore, the SEP.cnf.xml file is much larger for SIP than for SCCP. Dialplan file (optional): The SIP phones can download and use local dial plans. Softkey file: The SIP phones download their softkey sets in this XML file.

19 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Third-Party SIP Phone Startup Process Cisco Unified CallManager Third-party SIP Phone 1. mperry looked up in the database 2. mperry associated with the SIP phone 3. configuration of this SIP phone SIP OK SIP REGISTER Authorization: Digest username=mperry",realm="ccmsipline, nonce="GBauADss2qoWr6k9y3hGGVDAqnLfoLk5", uri="sip: ",algorithm=MD5, response="126c0643a ab59d4f e"

20 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v SIP Phones to Cisco Unified CallManager Interaction Integrated with CTFTP Sends MAC address Down- loads softkey file Down- loads dialplan file Supports Cisco Unified CallManager failover/ fallback Supports Reset/ Restart Cisco SIP Phone 7905/12 Yes NoYes 1 Yes Cisco SIP Phone 7940/60 Yes NoYes Cisco SIP Phone 797x, 7941, 7961 Yes Third-Party NoNo 2 No No 2 1 Part of the configuration file. 2 In the future, third-party phones may add this support. Failover can be supported today via DNS SRV.

21 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v SIP and SCCP Configuration Similarities SIP phones are configured similarly in Cisco Unified CallManager Administration to SCCP phones (devices and lines). The protocol is specified when a new phone type is added. Cisco SIP phones can be reset and restarted from the Phone Administration page (but not third-party phones). Much of the device configuration is the same. All of the line configuration is the same.

22 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v SIP vs. SCCP Configuration Differences SIP PhonesSCCP Phones All configuration via TFTP (device pool, line configuration, softkey, dial plan) Configuration via TFTP (Cisco Unified CallManager group, SRST, load information), and softkey templates from SCCP Can have local dial planDo not have local dial plan Register via UDP, TCP, or TLSRegister via TCP or TLS

23 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Supported SIP Signaling Transports Three transport methods are available in SIP: UDP, TCP, or TLS. Cisco IP Phone 7905/7912 Cisco IP Phone 7940/7960 Cisco IP Phone 7911/41/61/7x UDP TCP TLS In SCCP, UDP is not an option.

24 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v NTP Clock for SIP Phones SCCP phones derive their clock from Cisco Unified CallManager via SCCP signaling messages. Cisco 8.0 SIP phones derive their clock from one of the following sources, in priority order: 1. Primary NTP server 2. Secondary NTP server 3. Broadcast NTP server 4. Date header in 200 OK response from Cisco Unified CallManager to their REGISTER message NTP servers are defined in Cisco Unified CallManager Administration and propagated to the phone TFTP configuration files.

25 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v DTMF Interworking: RFC 2833 and KPML Cisco Unified CallManager Release 4. x and earlier versions pass DTMF messages in signaling (out-of-band). Most SIP devices communicate DTMF tones in the media channel (in-band) according to RFC –This is why in Release 4.x, you had to allocate an MTP for every SIP call. The IETF now has an out-of-band method for SIP, called KPML. Cisco Unified CallManager Release 5.0 introduces KPML support on SIP and RFC 2833 support on SCCP, MGCP, and H.323. –This significantly reduces (but does not eliminate) the number of scenarios in which an MTP must be allocated. –KPML is always preferred over RFC 2833 on line-side. Cisco Unity, MeetingPlace, MeetingPlace Express, Cisco IOS gateways, and many others support KPML –CTI applications do not yet support KPML in Release 5.0

26 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Cisco Unified CallManager Video Telephony Supports video and video-related features, such as far-end camera control (FECC) Supports multiple logical channels that are needed to allow the transmission of video streams Transmits midcall, media-related messages that are needed for video Supports H.323, SCCP, and SIP Enhances locations and regions to provide bandwidth management Provides serviceability information, such as Call Detail Records (CDRs), about video calls

27 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Cisco Video Endpoints Windows-based application and USB camera Associates with a Cisco Unified IP Phone 7940, 7941, 7960, 7961, 7970, or 7971 running SCCP Cisco IP Phone 7985GCisco Unified Video Advantage Personal desktop standalone video phone It has 8.4-inch color LCD screen and an embedded video camera

28 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Third Party Video Endpoints Cisco Unified CallManager Release 5.0 supports third-party video-enabled endpoints: Sony PCS-1, PCS-TL30, or PCS-TL50 models running SCCP Tandberg 2000 MXP, 1500 MXP, 1000 MXP, 770 MXP, 550 MXP, T-1000, or T-550 models running SCCP TANDBERG 1500 MXPSony PCS-TL50

29 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Cisco IP Phone Codec Support Audio codecs: Potentially able to compress audio signals Cisco IP phones support: G.711: 64 kbps G.729: 8 kbps

30 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Summary Cisco IP phones are display-based, support customization, have inline power, and you can configure them for SCCP or SIP. Entry-level Cisco IP phones include the Cisco Unified IP Phone 7902G, 7905G, 7911G, and 7912G. Midrange Cisco IP phones include the Cisco Unified IP Phone 7940G, 7941G/G-GE, 7960G, 7961G/G-GE. Upper-end Cisco IP phones include the Cisco Unified IP Phone 7970G, 7971G/GE. Additional IP telephony devices include the Cisco Unified IP Phone 7985G, Cisco Unified IP Conference Station 7936, Cisco IP Communicator, Cisco ATA 186 and 188, and Cisco Unified IP Phone 7914 Expansion Module. Cisco Unified CallManager supports SIP IP phones of the three feature levels: –Basic SIP for Cisco SIP Phones 7905, 7912, 7940, and 7960

31 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Summary (Cont.) –Advanced SIP for Cisco SIP Phones 7911, 7941, 7961, 7970/71, and Cisco IP Communicator –Very basic SIP for all supported third-party SIP phones An IP phone follows a specific process each time it boots up. In Cisco CallManager Administration, SIP phones are configured similarly to SCCP phones but some minor configuration differences exist. Cisco Unified CallManager supports video telephony on Cisco video endpoints such as Cisco Unified Video Advantage, Cisco Unified IP Phone 7985 or third-party video endpoints such as Tandberg, Sony, and others. Audio codecs convert analog voice signals to a digital stream and compress the output to save bandwidth. Cisco IP phones support the G.711 and G.729 codecs.

32 © 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v