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Community Member

Cisco ISR G2 SIP Calls Capacity

Dear all,

We're planning for Cisco Voice Gateway configuration with SIP trunk, till now no E1s are used.

I would like to know how can we calculate the number of simulataneous calls that a cisco ISR G2 router (1921. 2921.3945,etc...) can support ?

How much sip simultaneous calls each ISR G2 model can support ?

Is it better to use SIP or we must get into E1 PRI ?

Regards,

1 ACCEPTED SOLUTION

Accepted Solutions
VIP Super Bronze

Cisco ISR G2 SIP Calls Capacity

The Q and A below has the call capacity you are looking for

Table 1. Number of IP-to-IP Calls per Platform

Platform

Maximum Number of Simultaneous Calls (Flow-Through)

Cisco 3945E

2500

Cisco 3925E

2100

Cisco 3945

950

Cisco 3925

800

Cisco 2951

500

Cisco 2921

400

Cisco 2911

200

Cisco 2901

100

Cisco ASR 1004; and Cisco ASR 1006 Router Processor 2 (RP2)

5000; 16000*

Cisco ASR 1002, ASR 1004, and ASR 1006 RP1

1750

Cisco AS5350XM and AS5400XM

600

Cisco 3845

500

Cisco 3825

400

Cisco 2851

225

Cisco 2821

200

Cisco 2811

110

Cisco 2801

55

http://www.cisco.com/en/US/prod/collateral/voicesw/ps6790/gatecont/ps5640/prod_qas09186a00801da69b.html

Please rate all useful posts

"opportunity is a haughty goddess who waste no time with those who are unprepared"

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
3 REPLIES
VIP Super Bronze

Cisco ISR G2 SIP Calls Capacity

The Q and A below has the call capacity you are looking for

Table 1. Number of IP-to-IP Calls per Platform

Platform

Maximum Number of Simultaneous Calls (Flow-Through)

Cisco 3945E

2500

Cisco 3925E

2100

Cisco 3945

950

Cisco 3925

800

Cisco 2951

500

Cisco 2921

400

Cisco 2911

200

Cisco 2901

100

Cisco ASR 1004; and Cisco ASR 1006 Router Processor 2 (RP2)

5000; 16000*

Cisco ASR 1002, ASR 1004, and ASR 1006 RP1

1750

Cisco AS5350XM and AS5400XM

600

Cisco 3845

500

Cisco 3825

400

Cisco 2851

225

Cisco 2821

200

Cisco 2811

110

Cisco 2801

55

http://www.cisco.com/en/US/prod/collateral/voicesw/ps6790/gatecont/ps5640/prod_qas09186a00801da69b.html

Please rate all useful posts

"opportunity is a haughty goddess who waste no time with those who are unprepared"

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
VIP Super Bronze

Cisco ISR G2 SIP Calls Capacity

Be careful not to make your decision solely based on the maximum concurrent calls. The far lower number is call [setup/teardown] per second. Keep in mind that Mobile Connect will significantly amplify this. Page 15 of the following document shows the details.

http://www.cisco.com/en/US/prod/collateral/routers/ps259/product_data_sheet0900aecd8057f2e0.pdf

Please remember to rate helpful responses and identify helpful or correct answers.

Community Member

Thanks for the very useful

Thanks for the very useful answer!

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