The Complete VoIP Telecom Service Provider. Myth: SIP Trunks are Hard to Configure

Transcription

1 The Complee VoIP Telecom Service Provider Myh: SIP Trunks are Hard o Configure 1

2 Overview Wha are we rying o avoid? Inerne Access Choices InGae (SIParaor vs Firewall) Cusomer Nework PBX Seup Conclusion Q&A 2

3 Problems - Wha are we rying o avoid? High Laency Packe-loss Nework Insabiliy NAT Traversal Issues Blocked Pors Opening he Cusomer s Nework o Hackers 3

4 Wha is Congesion? 4

5 Where is he Congesion? 5

6 Inerne Access Sizing he Circui G.711 G.729a Un-Compressed Voice Bes Qualiy Budge 85K per Concurren Call Ideal when he amoun of bandwidh is no an issue. 8 o 1 Compression Lower Qualiy Budge 30k per Concurren Call Ideal when waiing for new bandwidh o be provisioned or when he bandwidh on sie is very good. Esimae Bandwidh Curren Daa Peak Uilizaion (Kb) + (Concurren Calls X Codec Budge Kb) 6

7 Inerne Access Good Vs Bad The Good Covad Voice Opimized Access ADSL SDSL T-1 Sprin or Qwes Prioriy Queued T-1s Tier 1 Inerne T-1 and above The Bad Plain xdsl Cable Inerne Tier 2 or 3 Inerne Access Pre-Wimax Wireless Saellie Shared Inerne Circuis 7

8 NAT Traversal & Securiy NAT Traversal Issue Sandard NAT does no work wih SIP. SIP message conains IP address of he PBX and radiional NAT does no ranslae. To suppor SIP wih NAT he rouer or he Firewall ha is performing NAT mus possess Applicaion Layer Gaeway (ALG) funcionaliy. SIP Aware Firewall Wih sandard firewall 10s of housands of pors would need o be permanenly opened in corporae firewalls SIP Aware firewall opens pors for specific calls and hen closes hem when calls complee 8

9 InGae Siparaor Used when he cusomer requires heir own firewall. Auomaed seup wizard Remoe regisraion and NAT capabiliies NAT Traversal & SIP Compaibiliy opions 9

10 InGae Firewall Used as he cusomer s firewall. Auomaed seup wizard Remoe regisraion and NAT capabiliies NAT Traversal & SIP Compaibiliy opions Traffic shaping 10

11 The Cusomer Nework Bes Pracices 100MB Nework (Sandard) Good Cerified CAT5 wiring Managed swiches wih VLANS LAN QoS NO HUBS!!! 11

12 The PBX Use good buying pracices when choosing a PBX References Capabiliies Capabiliies Suppor Use a SIP Trunking carrier recommended and wih suppor ies o your PBX manufacurer Applicaion Noes (Config noes) Follow Manufacurer bes pracices for SIP runks Make sure Inegraor has seup he PBX wih he carriers SIP runks. They should have a demo lab. 12

13 Parner PBX Sysems 13

14 Conclusions Nework planning has a lo of he same goals and bes pracices of any compeen nework. Wih reducion of cos, he righ nework seps are easier o ake. InGae SIParaor or Firewall are easy o seup wih wizard. Many compeen Inerne Access opions PBX manufacurers have applicaion noes If you pracice seing i up on Inegraor sie, cusomer s sie is cake 14

15 Who is Bandwidh.com Who is Bandwidh.com? Founded in 1999 in Research Triangle Park, Norh Carolina Firs broad-line daa provider Offered businesses abiliy o compare 20 differen carriers wih online pricing API connecions wih all Tier 1 providers Creaed 1 s Insallaion racking poral for small and medium business cusomers Launched VoIP in Employees dedicaed o voice and daa sales and suppor 250% Annualized Revenue Growh Profiable 99.1% Cusomer Reenion #1 #1 #16 fases growing privaely held elecom company in he Counry fases growing privaely held company in Norh Carolina fases growing privaely held company in he Counry Annual award given for a company s achievemens in creaing a posiive work environmen ha aracs and reains employees hrough a combinaion of benefis, working condiions and company culure. 15

16 Q&A Quesions? 16