iiNet SIP Trunking
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iiNet SIP trunking - savings comparison
See it for yourself - SIP will deliver great savings on your business call costs.
PSTN to SIP trunking
While SIP trunking delivers upfront savings, more can be saved by moving from a PSTN 1:1 concurrency to a 1:2 or 1:3 line-to-number ratio.
| PSTN lines | monthly PSTN cost | ratio | SIP lines | SIP numbers | monthly SIP cost | saving |
|---|---|---|---|---|---|---|
| 5 | $199.75 | 1 : 1 | 5 | 10 | $110 | 45% |
| 10 | $399.50 | 1 : 1 | 10 | 10 | $210 | 45% |
| 1 : 2 | 5 | 10 | $110 | 72% | ||
| 15 | $599.25 | 1 : 1 | 15 | 20 | $310 | 48% |
| 1 : 2 | 8 | 20 | $176 | 71% | ||
| 1 : 3 | 5 | 20 | $110 | 82% | ||
| 25 | $998.75 | 1 : 1 | 25 | 30 | $475 | 52% |
| 1 : 2 | 13 | 30 | $274 | 73% | ||
| 1 : 3 | 9 | 30 | $198 | 80% | ||
| 1 : 4 | 7 | 30 | $154 | 85% |
- calculations are based on an average monthly PSTN rental of $39.95
- a minimum of 4 and maximum of 100 lines are available according to qos restrictions
- lines can be added/removed in single units
- numbers can only be added/removed in 10, 20 or 50 block ranges
ISDN to SIP trunking
ISDN only offers lines in forced batches of 10/20/30. SIP trunking lets customers choose any number of lines between 4-100 per trunk.
| ISDN lines | monthly ISDN cost | SIP lines | SIP numbers | monthly SIP cost | saving |
|---|---|---|---|---|---|
| ISDN 10 | $287 | 10 | 10 | $220 | 23% |
| 5 | 10 | $110 | 62% | ||
| ISDN 20 | $574 | 20 | 20 | $400 | 30% |
| 15 | 20 | $310 | 46% | ||
| ISDN 30 | $833 | 30 | 30 | $550 | 34% |
| 25 | 30 | $475 | 43% |
- calculations are based on indicative ISDN rental costs for ISDN 10/20/30 services
- a minimum of 4 and maximum of 100 lines are available according to qos restrictions
- lines can be added/removed in single units
- numbers can only be added/removed in 10, 20 or 50 block ranges
