Configuration buffer full, can't add command

[mulawa1]

woody is a Cisco 2600 router.

The following first occurred when I set up 439 but it still seemed to be set up correctly. Now I set up 432 (see below) and the same error occurs BUT STILL REFERRING TO 439. AND 432 seems to work ok. Help please!

woody#config
Configuring from terminal, memory, or network [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
woody(config)#dial-peer voice 432 voip
woody(config-dial-peer)#destination-pattern 432
woody(config-dial-peer)#progress_ind setup enable 3
woody(config-dial-peer)#voice-class codec 1
woody(config-dial-peer)#session target ipv4:138.7.32.29
woody(config-dial-peer)#dtmf-relay h245-alphanumeric
woody(config-dial-peer)#ip precedence 5
woody(config-dial-peer)#no vad
woody(config-dial-peer)#exit
woody(config)#exit
woody#write mem
Building configuration...

% Configuration buffer full, can't add command: dial-peer voice 439
% Aborting Save. Compress the config.[OK]