Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 
New Member

Cisco VoIP System does not answer first caller.


     I'm having an issue with my phone system in my office. If one person calls, the auto-attendant does not answer, and just keeps ringing, however if a second person calls, it will answer the second person. I did a couple of debug commands, and it doesn't even seem to pickup any information when the first caller calls, but when the second caller calls I get a whole whack of information from the debugging.

Here is the version of what I'm running for my phone system.

sh version
Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version 12.4(9)T, RELEASE SOFTWARE (fc1)
Technical Support:
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Fri 16-Jun-06 22:22 by prod_rel_team

ROM: System Bootstrap, Version 12.3(8r)T7, RELEASE SOFTWARE (fc1)

SDBREM-2821-01 uptime is 1 hour, 13 minutes
System returned to ROM by reload at 09:13:26 EDT Tue Sep 1 2009
System restarted at 09:14:28 EDT Tue Sep 1 2009
System image file is "flash:c2800nm-spservicesk9-mz.124-9.T.bin"

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at: you require further assistance please contact us by sending email to 2821 (revision 53.51) with 249856K/12288K bytes of memory.
Processor board ID FTX0923A1LF
4 FastEthernet interfaces
2 Gigabit Ethernet interfaces
1 terminal line
4 Voice FXO interfaces
1 cisco service engine(s)
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62592K bytes of ATA CompactFlash (Read/Write)



Configuration register is 0x2102


New Member

Re: Cisco VoIP System does not answer first caller.

Hi Christopher,

It seems that you may be hitting different inbound dial peers for the AA calls. I would check that first. Having said so, these forums are for Small Business products. The 2800 does not fall into this category. Please refer to Netpro for ISR support:



New Member

Re: Cisco VoIP System does not answer first caller.

Sorry about that.

Thanks, Marcos.

CreatePlease to create content