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Concurrent FTP Calls per AP - 802.11a

Hi All :)

Cisco state that:

For the Cisco 7920 wireless IP phone, Cisco recommends that you have no more than 15 to 25 total 7920 devices per 802.11b access point. Of these devices, each 802.11b access point can support no more than eight G.729 or seven G.711 concurrent calls per access point.

Couple of questions:

Is it the same number for 7921 phones?

What are the concurrent active RTP call recommendation for 802.11g and 802.11a?

Many thx as always guys :)

Ken

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Silver

Re: Concurrent FTP Calls per AP - 802.11a

This is from the 7921 Deployment Guide:

The Cisco Access Point can support up to 27 active RTP streams for both 802.11g and 802.11a at a data rate of 24 Mbps or

greater. To achieve this capacity, you must use U-APSD and have minimal WLAN background traffic and radio frequency (RF)

utilization.

The number of calls may vary depending on the data rate, initial channel utilization, and the environment.

At 6 Mbps, the Cisco Access Point can support up to 13 active RTP streams.

Using U-APSD instead of PS-POLL provides higher call capacity because U-APSD is more efficient and has limited

management overhead.

An RTP stream is bi-directional audio to and from a phone

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7921g/6_0/english/deployment/guide/7921dply.pdf

-Scott
*** Please rate helpful posts ***
3 REPLIES
Hall of Fame Super Silver

Re: Concurrent FTP Calls per AP - 802.11a

This is from the 7921 Deployment Guide:

The Cisco Access Point can support up to 27 active RTP streams for both 802.11g and 802.11a at a data rate of 24 Mbps or

greater. To achieve this capacity, you must use U-APSD and have minimal WLAN background traffic and radio frequency (RF)

utilization.

The number of calls may vary depending on the data rate, initial channel utilization, and the environment.

At 6 Mbps, the Cisco Access Point can support up to 13 active RTP streams.

Using U-APSD instead of PS-POLL provides higher call capacity because U-APSD is more efficient and has limited

management overhead.

An RTP stream is bi-directional audio to and from a phone

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7921g/6_0/english/deployment/guide/7921dply.pdf

-Scott
*** Please rate helpful posts ***
Community Member

Re: Concurrent FTP Calls per AP - 802.11a

Many thx again mate. Could not find it, and you have come up trumps.

Brill,

Thx

Ken

Community Member

Re: Concurrent FTP Calls per AP - 802.11a

Many thx again mate. Could not find it, and you have come up trumps.

Brill,

Thx

Ken

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