SIP Trunking Getting it Right the First time…! Infrastructure & Delivery Management Theatre
SIP is Everywhere! Even here
SBC ITSP PBX SIP SIP SIP
It’s an Obsession
savings 40% – 80%
Lines – You choose DIDs – How many? Disaster Recovery Branch 2 Branch £0? Migrate - T1/E1 if nervous
Line Side – Trunk Side
Unified Clients Unified Server Inc. Registrar and Location services SIP IP Phones Directory DNS Messaging Server Gateway PBX Firewall / NAT ITSP
Voice and Data on Same Network
TOS for Quality across the LAN
Bandwidth and Codecs
All about ‘The Edge’
Bandwidth + Codecs
Call Traffic Measurement
Centralized model 4 3 2 1 Primary IP 126.96.36.199
It’s all about the ‘Edge’
TDM PBX + SIP Trunks Data Asymmetric DSL TDM / PBX TDM to SIP/RTP Gateway SIP Trunks SDSL Internet ISP ITSP
SIP PBX + Converged + SIP Trunks Data TDM / PBX TDM to SIP/RTP Gateway Voice Switch SIP / PBX Internet ISP ITSP
NAT SECURITY REMOTE USER QoS
No ‘QoS’ on the Edge…! REAL-TIME LOW PRIORITY MED PRIORITY HIGH PRIORITY www @ $$$
‘ Layer 3’ QoS Packets Out SAP Email EF Default Police CBWFQ Low Latency Queuing Packets In Note: DiffServe Codepoint 101110 is recommended for the EF PHB. Hang on – 70% is your max! Classify www @ $$$
Trunking and Hosted IP PBX
DEDICATED BANDWIDTH TRUNKS and HOSTING BYOB
PBX Router PSTN PSTN ITSP Offerings We need some more DDI’s Can I have a ‘London’ number? No problem Can we have our ‘old’ numbers please? Of course! That’s us
PSTN PSTN ITSP Offerings PBX Router SHA / TLS / SRTP Thwarted We need more lines more our marketing push! I can do that via our Web Interface I’ll do that!
Multiprotocol Label Switching (MPLS) is a mechanism in high-performance telecommunications networks which directs and carries data from one network node to the next. MPLS makes it easy to create "virtual links" between distant nodes. It can encapsulate packets of various network protocols . MPLS
Stay ‘On-Net’ Voip-com.net HQ ~ New York San Diego London Milan Barcelona ITSP MPLS Client VPLS
From ITSP to PSTN and Back…! Voip-com.net HQ ~ New York London Milan ITSP MPLS Client VPLS Client VPLS Auckland Client.au Sydney ITSP MPLS PSTN
Voip-com.net New York London Milan ITSP MPLS Client VPLS Client VPLS Auckland ITSP MPLS Client.au Sydney
1000’s of ITSPs
Domains on Records
So I’m leaving am I?
AT&T ask the Federal Communications Commission to create a timetable to shutdown the analog PSTN phone system in the United States. AT&T explains that “maintaining two networks - IP and PSTN is retarding the deployment of the newer broadband IP network”. [December 2009]
PBX ITSP SIP Trunk Firewall/NAT
The road to compatibility Option Can May Should 344 475 381 144
X Z Y SIP:Proxy I got the CFNA Info I got the CFNA Info I gave you the CFNA info on boot up! SIP:INVITE SIP:INVITE
The Telecommunications Industry Association (TIA), the leader in advocacy, standards development, business development and intelligence for the information and communications technology industry, has officially endorsed the The SIP School as the provider of choice for training and certification for Session Initiation Protocol (SIP).
SIP Trunking Sales and Marketing Professional April
Checklist / Recap
Measure Calling patterns, in / out / busy times to measure requirements
Internal = G.729 – customer = G.711
Consider Centralised model
Select your Edge device or work with ITSP to decide
QoS on the Edge if voice / Data on same connection
Select ITSP and find out w hat is the interoperability of your gear with the provider?
90 day trial – test them out? Try all features – test their support team
Do you have an SLA or just a basic contract for service?
Are you sacrificing basic features to obtain advanced features?
Do you have adequate security in place?
Take time to make change – it’s never smooth and business will get interrupted
Do/will ITSP offer advanced features such as Video, HD, Unified Comms etc.
ITSP offer SIP Trunking today and migration path to hosted?