EarthLink Business SIP Trunking/media/5bda2b6c75394a1ea0b6c390393fbcbe.pdfThe EarthLink Business SIP...

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EarthLink Business

SIP Trunking

Cisco CUCM 11.5 with CUBE

Customer Configuration Guide

Implementation Guide

2

Proprietary and Confidential – EarthLink Business

Publication History

First Release: Version 1.0 – August 30, 2011

CHANGE HISTORY

Version Date Change Details Changed By

1.0 8/30/2011 Original Document Draft Dantley Thompon

1.1 11/06/2013 Modified for Cisco CUCM 10.5 Mike Machnik

1.2 3/17/2017 Modified for Cisco CUCM 11.5 Dan Roy, Mike Machnik

AUTHOR: Dantley Thompson EarthLink Engineering


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Table of Contents

Document Purpose ________________________________________________4

Product Summary _________________________________________________4

Network Architecture and Design ________________________________________5

Media Attributes and Codec Negotiation ____________________________________7

Codec Support ______________________________________________________ 7

G.711u ___________________________________________________________ 7

G.729a ___________________________________________________________ 7

Packetization Time ____________________________________________________ 7

DTMF Support ______________________________________________________ 7

Fax and Modem Support Requirements ____________________________________8

North American Numbering Plan Format ________________ Error! Bookmark not defined.

Quality of Service Policy _____________________________________________8

EarthLink SIP Trunking to IP PBX Interoperability _______________________________9

Adtran Software Version Tested ___________________________________________ 9

IP PBX Software Version Tested ____________________________________________ 9

EarthLink Open Issues & Non-Supported Features ________________________________ 9

Cisco CUCM Open Issues & Non-Supported Features ______________________________ 9

IP PBX Configuration for EarthLink SIP Trunking with Adtran CPE _____________________10

Cisco CUCM IP PBX Configuration _________________________________________ 10

Cisco CUBE Configuration ______________________________________________ 18

Product Support and Contact Information __________________________________27

EarthLink SIP Trunking Turn-up Testing Procedure _____________________________28


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Document Purpose The purpose of this document is to provide a detailed technical description and best practices for

successful implementation of the EarthLink SIP Trunking Product for the Cisco CUCM with CUBE behind

the Adtran CPE. This document provides information relative to the overall network topology as well as

definition and configuration standards for each device associated with the product. Also described

within this document are product guidelines and product limitations. This document is to serve as

product reference and guide to EarthLink Customers.

Product Summary The EarthLink Business SIP Trunking product is a complete VoIP (Voice over IP) solution based on the SIP

(Session Initiation Protocol) signaling protocol. The SIP Protocol is responsible for set-up and tear-down

of voice calls and overall feature and functionality. The SIP Trunking product can be offered as an overlay

to several of EarthLink’s existing products such as Internet and MPLS based products. EarthLink Business’

SIP Trunking solution will be served off a MetaSphere Call Feature Server (CFS) fronted by a Perimeta or

Oracle/Acme Packet SBC (Session Border Controller). The CFS acts as the centerpiece for call control and

feature interaction. The EarthLink Business SIP Trunking Product will primarily use Adtran CPE (Customer

Premise Equipment) and will not be configured as a SIP Proxy. The Cisco CUBE will handle the NAT and

the SIP Proxy. The MetaSphere CFS Platform is a geo-redundant, high availability solution and serves as

the primary element in EarthLink’s Hosted Voice and SIP Trunking Product families.

In addition to the basic call control, advanced call routing functionality is available with EarthLink’s SIP

Trunking product with MetaSphere Enhanced Application Server (EAS) Platform which consists of

multiple applications and servers integrated into high availability solution.

The Perimeta or Oracle/Acme Packet SBC masks private to public IP Address space to provide a safe and

secure means of communication between the SIP Server and IP PBX. All SIP traffic destined to, or

originating from the MetaSphere CFS, traverses through the Perimeta or Oracle/Acme Packet SBC. The

same policy relates to the CPE device installed at the customer premise. The Perimeta or Oracle/Acme

Packet SBC will resolve NAT (Network Address Translation) related issues exposed when SIP traffic

passes through a firewall.


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Network Architecture and Design The EarthLink Business SIP Trunking solution consists of several key network elements that are

connected to the existing core routing infrastructure. The MetaSwitch Call Feature Server, IP/TDM

Gateways, and Perimeta or Oracle/Acme Packet SBC’s are geographically diverse with reach-ability at

both layer two and layer three to provide failover capability and redundancy. Split-Horizon DNS servers

are used to resolve the SIP domain to the appropriate regional SBC. Adtran CPE will be connected to the

EarthLink network via the traditional means such as Ethernet, PPP (Point to Point Protocol), or MLPPP

(Multilink Point-to Point Protocol). T1, or bonded T1 services MUST be provisioned to either the Adtran

TA5000 or directly to the Cisco 7609 (Edge Router) to allow for proper QoS (Quality of Service) behavior.

The first diagram below provides a high level look at the primary components that complete the SIP

Trunking product. The second diagram provides a detailed layout for the connections between the

Adtran CPE and Customers IP PBX.

MetaSwitch Application Server

SBC

Title: EarthLink Business SIP Trunking Test Bed Network Topology

Rev.03 Date:3/17/2017 Drawing by: Mike Machnik

SIP SIP SIPEarthLink

VoIPNetwork

PSTN

Cisco P.E.

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Cisco UCM BE6000SProv 172.27.199.10CUCM 172.27.199.11Unity 172.27.199.12Cisco 2921 RouterCUBE 172.27.199.1

IP Station

IP Station

IP Station

Split-HorizonDNS Server

Adtran CPEAdtran 1234

Switch

Figure 1-EarthLink SIP Trunking-Network Topology


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2

EarthLink T1 from Network to

Adtran NET T1 0/1 Adtran ETH 0/1 to Customers

Ethernet Switch

Adtran 900e/Rear-View

EarthLink

Network

1 3 5 7 9 1 1 1 3 1 5 1 7 1 9 2 1 23 G3G1

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2 4 6 8 1 0 1 2 1 4 1 6 1 8 2 0 2 2 24

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G1

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Cisco 2920 CUBE/BE6000S CUCM/UNITY

GigEth 0/0 management network

GigEth 0/1 CUCM LAN

GigEth 0/2 CUBE WAN

Figure 2-EarthLink SIP Trunking-Connections from Adtran CPE to IP PBX


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Media Attributes and Codec Negotiation

Codec Support A voice codec (coder/decoder) is a hardware/software module/algorithm that takes an analog or digital

voice stream and encodes it into an IP packet. For the EarthLink Business SIP Trunking Product, we

currently support two (2) of the most common codec’s utilized in the continental United States, G.711u

and G.729a. The preferred codec offered by EarthLink in the default configuration model is G.711u, then

G.729a. Basically this means that the call will negotiate using the G.711u codec first, as long as the

terminating end sends G.711u as the first or primary offered codec. The paragraphs below provide more

detailed information related to the codec’s and other requirements associated with proper negotiation

of the media/RTP.

G.711u G.711u is the most common uncompressed audio codec deployed in the US. Because it is

uncompressed, it supports the highest level of quality for the call. Typically the G.711u consumes

90Kbps-100Kbps per call. The standard sampling rate of 8kHz is used for the G.711u codec.

G.729a G.729a is the most common codec utilized to support compressed audio utilized in the US. Because it is

compressed, it is perceived to have a lower voice quality than that of G.711u, however most people

would never be able to tell the difference. Typically the G.729 consumes 30Kbps-40Kbps per call. The

standard sampling rate of 8kHz is used for the G.729a codec.

Packetization Time Packetization Time determines how often the audio stream is sampled and how often an IP packet is

created. The standard packetization times are 10ms, 20ms, 30ms, and 40ms. EarthLink Media

Gateway’s have been statically configured to use a 20ms packetization time. IP Phones and/or Voice

Applications will need to configure their equipment for a 20ms packetization time before audio traffic

can be reliably passed across the EarthLink IP Voice network.

DTMF Support EarthLink supports the transmission of Dual-Tone Multi-frequency (DTMF) digits through the

implementation of RFC2833. This RFC covers the basis of including DTMF digits within the media/RTP

path of the call. EarthLink recommends for Customers to configure their IP PBX’s and/or Voice

Applications to use RFC2833 to allow for DTMF to be passed properly and detected across the EarthLink

IP Voice network.


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Fax and Modem Support Requirements Currently, analog devices such as faxes and modems MUST be provisioned using the G.711u codec only.

“SIP” to analog lines are supported as SIP Lines off the Adtran FXS Ports or a Cisco 122 ATA (Analog

Terminal Adapter). The customer may also configure the IP PBX to use analog extensions for faxes and

modems. This method can be supported utilizing the G.711u codec only. T.38 is currently not supported.

Quality of Service Policy To ensure the best possible voice quality, EarthLink will mark and match all VoIP traffic related to SIP

(Session Initiation Protocol) and RTP (Real-Time Transport Protocol). EarthLink VoIP and/or Real-Time

based appliances and applications are configured to use DSCP (Differentiated Services Code Point) “46”

for all signaling traffic (SIP) and DSCP “46” for all Real-Time traffic (RTP) for Layer three priority. The

Customers IP PBX MUST be configured to use DSCP “46” to provide prioritization for SIP and RTP.

Marking the DSCP field in the IP packet header will allow for packet classification to be matched and

provide priority across EarthLink’s network. This also ensures QoS specifications outlined in SLA (Service

Level Agreements) can be sufficiently met between EarthLink and the customer.


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EarthLink SIP Trunking to IP PBX Interoperability SIP Trunking interoperability testing was performed between EarthLink and the IP PBX. All phases of the

test plan were executed against the actual configuration used in a customer deployment. The

information below provides the Adtran and IP PBX software versions tested as well as an issue summary

and non-supported elements discovered during compliance testing in the EarthLink Lab.

Adtran Software Version Tested Adtran TA908e version R10.3.2

IP PBX Software Version Tested CUCM 11.5 .1 11900-26

VM ESXi 6.0.0

CUBE c2900-universalk9-mz.SPA.155.3.M4a.bin

Phones - Cisco IP Phones 7960 7.2 (3.0) P0030801SR02

EarthLink Open Issues & Non-Supported Features Registration is currently not supported for the EarthLink SIP Trunking Product.

T38 faxing is not currently supported.

While support for sending out P-PREFF and DIVERSION headers is shown in CUCM Admin SIP

Trunk page and in Docs, we were unable to achieve a configuration during the test period

that resulted in these 2 items being sent out from the CUCM. PAI (Privacy asserted Identity)

and RPID (Remote-Party ID) worked fine, including with alternate calling number and names

used, i.e. Switchboard Identity). RPID and PAI are enabled by default under Call Routing

Information.

Cisco CUCM Open Issues & Non-Supported Features No current open issues.


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IP PBX Configuration for EarthLink SIP Trunking with Adtran CPE The steps below provide a basic guide for the configuration of the CUCM with CUBE for the EarthLink SIP

Trunking Product. Basic configuration of the CUCM with CUBE should be complete and the CUCM with

CUBE must be connected to the LAN prior to configuring the system for SIP Trunking. The Cisco CUBE

will anchor the media and will be the MTP resource.

Cisco CUCM IP PBX Configuration

Cisco CUCM configuration:


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Trunk Configuration to CUBE:


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Media Termination Point Configuration


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Device Pool Configuration.


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Server Configuration.

Cisco CUBE Configuration

CUBE Configuration:

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2017.03.16 12:01:46 =~=~=~=~=~=~=~=~=~=~=~= login as: admin Using keyboard-interactive authentication. Password: BE6000S>enable Password:


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BE6000S#terminal length 0 BE6000S#sh config Using 4274 out of 262136 bytes, uncompressed size = 7860 bytes Uncompressed configuration from 4274 bytes to 7860 bytes ! ! Last configuration change at 12:49:44 PST Tue Jan 31 2017 by admin ! NVRAM config last updated at 13:13:05 PST Tue Jan 31 2017 by admin ! version 15.5 service timestamps debug datetime msec service timestamps log datetime msec service password-encryption service compress-config service sequence-numbers ! hostname BE6000S ! boot-start-marker boot-end-marker ! ! card type e1 0 0 logging buffered 51200 warnings enable secret 5 $1$J0wK$QMSDS2cYydwSM1c4Pf.ur1 ! aaa new-model ! ! aaa authentication login default local ! ! ! ! ! aaa session-id common ethernet lmi ce clock timezone PST -8 0 clock summer-time PDT recurring network-clock-participate wic 0 ! ! ! ! ! ! ! !


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! ip dhcp excluded-address 172.27.199.1 172.27.199.31 ! ip dhcp pool BE6000S-Preconfigured-S1 import all network 172.27.199.0 255.255.255.192 default-router 172.27.199.1 option 150 ip 172.27.199.11 dns-server 172.27.199.1 domain-name ciscolocal.com lease 0 2 ! ! ! ip domain name ciscolocal.com ip host ns.ciscolocal.com 172.27.199.1 ip host ntp.ciscolocal.com 172.27.199.1 ip host pcp.ciscolocal.com 172.27.199.10 ip host plm.ciscolocal.com 172.27.199.11 ip host ucm-pub.ciscolocal.com 172.27.199.11 2001::172:27:199:11 ip host ucn1.ciscolocal.com 172.27.199.12 ip host imp1.ciscolocal.com 172.27.199.13 ip host s1-dgw.ciscolocal.com 172.27.199.1 ip host s1-ns.ciscolocal.com 172.27.199.1 ip host s1-vgw.ciscolocal.com 172.27.199.1 ip host s1-ntp.ciscolocal.com 172.27.199.1 ip host s1-cimc1.ciscolocal.com 172.27.199.2 ip host s1-esxi1.ciscolocal.com 172.27.199.4 ip host _cisco-uds._tcp.ciscolocal.com srv 0 1 8443 ucm-pub.ciscolocal.com ip host _cuplogin._tcp.ciscolocal.com srv 0 1 8443 imp1.ciscolocal.com ip multicast-routing ip cef no ipv6 cef multilink bundle-name authenticated ! ! ! ! isdn switch-type primary-net5 ! ! crypto pki trustpoint TP-self-signed-3167071413 enrollment selfsigned subject-name cn=IOS-Self-Signed-Certificate-3167071413 revocation-check none rsakeypair TP-self-signed-3167071413 !


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! crypto pki certificate chain TP-self-signed-3167071413 certificate self-signed 01 nvram:IOS-Self-Sig#1.cer voice-card 0 ! ! ! voice service voip ip address trusted list ipv4 172.27.199.11 ipv4 172.27.199.14 ipv4 172.27.199.15 ipv4 207.190.193.132 mode border-element allow-connections sip to sip no supplementary-service sip moved-temporarily no supplementary-service sip refer no supplementary-service sip handle-replaces no fax-relay sg3-to-g3 modem passthrough protocol codec g711ulaw sip asymmetric payload full no update-callerid g729 annexb-all ! ! voice class uri ucm sip host ^172.27.199.1[145]$ voice class codec 1 codec preference 1 g711ulaw codec preference 2 g729r8 codec preference 3 g711alaw codec preference 4 ilbc ! ! ! ! ! ! ! ! fax interface-type fax-mail license udi pid CISCO2921/K9 sn FJC2048A0P2 hw-module pvdm 0/0 ! hw-module sm 1 !


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! ! archive log config logging enable logging size 600 hidekeys username admin privilege 15 password 7 0225115806575F390D username jpilgrim privilege 15 password 7 08297C64394015302B ! redundancy ! ! controller E1 0/0/0 pri-group timeslots 1-31 description Primary Rate Connection to PSTN ! bridge irb ! ! ! ! interface Embedded-Service-Engine0/0 no ip address shutdown ! interface GigabitEthernet0/0 description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-GE 0/0$ ip address 172.24.17.102 255.255.255.0 ip pim sparse-dense-mode ip igmp version 3 duplex auto speed auto ! interface GigabitEthernet0/1 no ip address duplex auto speed auto bridge-group 1 ! interface GigabitEthernet0/2 no ip address duplex auto speed auto ! interface GigabitEthernet0/2.11 encapsulation dot1Q 11


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ip virtual-reassembly in ! interface GigabitEthernet0/2.40 encapsulation dot1Q 40 ip address x.x.x.x 255.255.255.248 ip nat outside ip virtual-reassembly in ! interface Serial0/0/0:15 no ip address encapsulation hdlc isdn switch-type primary-net5 isdn incoming-voice voice isdn sending-complete isdn outgoing display-ie no cdp enable ! interface ucse1/0 description Internal interface connected to UCSE Port 0 ip unnumbered BVI1 ip nat inside ip virtual-reassembly in service-module heartbeat-reset disable imc ip address 172.27.199.2 255.255.255.192 default-gateway 172.27.199.1 imc access-port shared-lom console bridge-group 1 ! interface ucse1/1 description Internal switch interface connected to UCSE Port 1 no ip address ! interface Vlan1 no ip address ! interface BVI1 description Bridge interface providing access to router and UCSE module. ip address 172.27.199.5 255.255.255.192 secondary ip address 172.27.199.1 255.255.255.192 ip pim sparse-dense-mode ip nat inside ip virtual-reassembly in ip igmp version 3 ! ip forward-protocol nd ! ip http server ip http access-class 23


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ip http authentication local ip http secure-server ip http timeout-policy idle 60 life 86400 requests 10000 ! ip dns server ip nat inside source list 1 interface GigabitEthernet0/2.40 overload ip nat inside source static tcp 172.27.199.10 443 207.190.193.120 4430 extendable ip nat inside source static tcp 172.27.199.11 443 207.190.193.120 4431 extendable ip nat inside source static tcp 172.27.199.2 443 207.190.193.120 4432 extendable ip nat inside source static tcp 172.27.199.13 443 207.190.193.120 4433 extendable ip nat inside source static tcp 172.27.199.4 443 207.190.193.120 4434 extendable ip nat inside source static tcp 172.27.199.12 443 207.190.193.120 4435 extendable ip nat inside source static tcp 172.27.199.2 80 207.190.193.120 8002 extendable ip nat inside source static tcp 172.27.199.4 80 207.190.193.120 8004 extendable ip nat inside source static tcp 172.27.199.10 80 207.190.193.120 8080 extendable ip nat inside source static tcp 172.27.199.11 80 207.190.193.120 8081 extendable ip nat inside source static tcp 172.27.199.13 80 207.190.193.120 8083 extendable ip nat inside source static tcp 172.27.199.12 80 207.190.193.120 8085 extendable ip nat inside source static 172.27.199.4 207.190.193.120 ip route 0.0.0.0 0.0.0.0 207.190.193.117 ip route 10.110.0.0 255.255.0.0 172.24.17.1 ip ssh version 2 ! ! ! snmp-server community public RO access-list 1 permit 172.27.199.0 0.0.0.255 access-list 2 permit any access-list 23 permit 10.0.0.0 0.255.255.255 access-list 23 permit 172.16.0.0 0.15.255.255 access-list 23 permit 192.168.0.0 0.0.255.255 access-list 101 permit tcp any eq www host 172.24.17.102 access-list 101 permit tcp any eq www host 172.24.17.103 ! ! ! control-plane ! bridge 1 protocol ieee bridge 1 route ip ! voice-port 0/0/0:15 ! ! ! ! !


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mgcp behavior rsip-range tgcp-only mgcp behavior comedia-role none mgcp behavior comedia-check-media-src disable mgcp behavior comedia-sdp-force disable ! mgcp profile default ! ! ! ! dial-peer voice 100 voip description To PeriMeta destination-pattern .T session protocol sipv2 session target sip-server voice-class codec 1 dtmf-relay rtp-nte ip qos dscp ef signaling no vad ! dial-peer voice 200 voip description To BE6000S destination-pattern 774237.... session protocol sipv2 session target ipv4:172.27.199.11 voice-class codec 1 dtmf-relay rtp-nte ip qos dscp ef signaling no vad ! ! sip-ua sip-server ipv4:y.y.y.y ! ! ! gatekeeper shutdown ! ! ! line con 0 privilege level 15 line aux 0 line 2 no activation-character no exec


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transport preferred none transport output none stopbits 1 line 67 no activation-character no exec transport preferred none transport input all transport output none stopbits 1 speed 9600 flowcontrol software line vty 0 4 transport input ssh line vty 5 15 transport input ssh ! scheduler allocate 20000 1000 ntp master 3 ntp update-calendar ntp server 0.ciscosb.pool.ntp.org ntp server 1.ciscosb.pool.ntp.org ntp server 2.ciscosb.pool.ntp.org ntp server 3.ciscosb.pool.ntp.org ! end BE6000S# exit


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Product Support and Contact Information The information below provides contact information for assistance in configuration and troubleshooting

EarthLink’s SIP Trunking service.

EarthLink Support:

http://www.earthlinkbusiness.com/support/support.xea

(800)239-3000

24x7 Support Availability

Cisco Support (TAC):

http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html

(800) 553-2447

24x7 Support Availability

http://www.earthlinkbusiness.com/support/support.xea

http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html


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EarthLink SIP Trunking Turn-up Testing Procedure To ensure proper call negotiation can be established between EarthLink and the IP PBX, the test steps

below MUST be executed during the initial turn-up process.

SIP Trunking Test Steps:

1. Test an outbound call to a Local Number. Check for Ring-back, 2-way Audio, and Call Quality.

2. Test an outbound call to a Long Distance Number. Check for Ring-back, 2-way Audio, and Call

Quality.

3. Test an outbound call to an International Number. Check for Ring-back, 2-way Audio, and Call

Quality.

4. Test an outbound call to a Toll-Free Number. Check for Ring-back, 2-way Audio, and Call Quality.

5. Test an inbound call that lasts greater than 10 minutes

6. Test an outbound call that lasts greater than 10 minutes

7. Test simultaneous inbound and outbound calls to PSTN

8. Test an outbound Call to Operator “0”

9. Test an outbound Call to Directory Assistance “411”

10. Test a “911” Call (IDENTIFY TO THE 911 OPERATOR THAT THIS IS A TEST). Ask them to provide

phone number, address and secondary or alternate number if available.

11. Test an inbound call to an internal DID. Check for Ring-back, 2-way Audio, and Call Quality.

12. Test an inbound call to Auto-Attendant. Check DTMF and Call Quality

13. Test an outbound call to an Auto-Attendant/IVR and verify DTMF

14. Test Call Transfer off-site

15. Test Call Forward off-site

Notes:

Date post:	24-Mar-2018
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EarthLink Business SIP Trunking/media/5bda2b6c75394a1ea0b6c390393fbcbe.pdfThe EarthLink Business SIP...

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