SIP dilivery methods and ROI

SIP Session Initiation Protocol

VoIP (SIP) Trunking – Quality Delivery Methods and ROI

Mark Bilton-SmithPresident

[email protected]

SIP trunk is …

A transport protocol offered by LEC - ILEC - CLEC - ITSP that connects a company's IP PBX – Hybrid PBX or ?to the existing telephone system infrastructure PSTN via a managed data service or Internet connection using the SIP VoIP standard.

Other VoIP protocols • Megaco (a.k.a. H.248) and MGCP both media gateway control protocols

• Skinny Client Control Protocol  proprietary protocol from Cisco

• MiNET  proprietary protocol from Mitel

• CorNet-IP  proprietary protocol from Siemens

• IAX  the Inter-Asterisk eXchange protocol used by the Asterisk open source PBX

• Skype  a proprietary protocol used in the Skype application

• Jajah  a proprietary peer-to-peer protocol used in the Jajah SIP and IAX compatible webphone

• Jingle  open peer-to-peer protocol based on XMPP (Jabber) and being harmonized with the Google “Google Talk” protocol.

SIP trunk bandwidth required…

http://www.erlang.com/calculator Great website to calculate your bandwidth requirements

In order to achieve toll quality voice you provider must deliver uninterruptedData at >150ms Latency >30ms Jitter <1% Packet loss for voice 0% for Fax

Delivery methods Bandwidth … Unmanaged Internet

Least expensive and does not include Quality of Service and may not meet the requirements for

Toll Quality Voice.

Managed Data ServiceMore expensive but provides Quality of Service and ensures the Toll quality voice your business relies on.

Examples of Managed service Must be dedicated to the provider

• Broadband or DSL• Data T-1 • Data DS-3• MPLS• Metro Ethernet (Redundant)• Copper over Ethernet (Redundant)• Bonded Broadband (redundant)• Fiber

Delivery methods

Delivery methods

Delivery methods

Delivery methods

Delivery methods

The Gotcha’s• 911• Unmanaged delivery (Internet)• Compression G.711 - G.729 • Gateways and IAD’s• Interopibility B2BUA - SIP Proxy - IAD• Firewalls (NAT traversal)B2BUA - SIP Proxy – IAD

• Analog Fax and ModemATA – T.38

• RedundancyPSTN – Dual data pipes

Pricing Models and ROIPOTS vs. SIP trunks (Includes Taxes and surcharges)

Pots $35.00SIP Trunks $15.00

T-1 vs. EOC (3 year term – No taxes or surcharges)

Data T-1 (1.544 mbps) $ 399.00 +EOC (3 x 2 mbps) $ 99.00EOC (15 x 2 mbps) $ 199.00EOC (25 x 2 mbps) $ 349.00

Enterprise EOC (8 mbps) $ 399.00T-1 or PRI vs. Dynamic SIP PRI T-1 (3 year term – No taxes or surcharges)

T-1 or PRI $ 499.00 +Dynamic $ 249.0020 SIP Trunk Bundle $ 199.00DID’s 15 cents eachLD bundles is as low as 2.5 cents a minute

Hosted IP Business telephones Hosted service per phone $24.95 (Includes SIP trunks, DID’s & features)

*Beware of inflated DID costs and Local call pricing.

SIP Session Initiation Protocol

Thank you

Mark Bilton-SmithPresident

[email protected]

Questions